The document lists terms related to astronomical sizes from biggest to smallest:
1. Universe - Everything that exists within the observable universe since the Big Bang.
2. Galaxy - Structures formed by assemblies of stars, gas and dust. Our galaxy, the Milky Way, is just one of billions.
3. Solar system - The Sun and celestial bodies that orbit it, including planets and their moons.
4. Star - Giant balls of gas that produce energy through nuclear reactions.
5. Planet - Large spherical bodies that orbit stars.
6. Moon - Natural satellites such as Earth's moon and the moons of other planets.
The document summarizes our current understanding of the structure and composition of the Milky Way Galaxy. It describes how observations across the electromagnetic spectrum have revealed that the Milky Way is a spiral galaxy with a disk, bulge, and halo structure, and that it contains around 100 billion stars and 1 trillion solar masses of total mass, most of which is dark matter. Precision measurements have also shown that the center of the Milky Way contains a supermassive black hole around 3 million times the mass of our Sun.
Nebulae are giant clouds of dust and gas found in space where stars are formed. They can be light years across and look fuzzy in appearance. When the gas and dust in a nebula collapses under its own gravity, it forms hot, dense cores where stars ignite and shine. Some nebulae glow due to radiation from young stars, called emission nebulae. Others reflect the light of stars, known as reflection nebulae. Planetary nebulae are formed when aging stars blow off their outer layers.
A star is a ball of plasma held together by gravity that undergoes nuclear fusion at its core, releasing electromagnetic radiation. Stars exist along a spectrum from hot, blue stars to cooler, red stars and can be classified based on their temperature, luminosity, and color. A star's life cycle begins as a contracting nebula and progresses through stages such as the main sequence, red giant, planetary nebula, and white dwarf before ending as a neutron star or black hole.
Galaxies come in different shapes and sizes. The largest are spiral galaxies which have a flattened disk with spiral arms and a bulge in the center. Elliptical galaxies have no definite shape and little gas or dust. Irregular galaxies have an irregular shape and active star formation. Well-known galaxies include the Andromeda Galaxy, Whirlpool Galaxy, Sombrero Galaxy, and Sunflower Galaxy.
Galaxies come in different sizes and types. They range from dwarfs with a few billion stars to giants with over 100 trillion stars. Galaxies are classified into three main types - ellipticals, spirals, and irregulars. The Hubble sequence further categorizes galaxies based on their visual structure into ellipticals, spirals, barred spirals, and lenticular galaxies. Spiral galaxies have a central bulge and spiral arms, while ellipticals are spherical or ellipsoidal. Interacting galaxies can trigger new star formation when their gas and dust interact during collisions.
Galaxies are collections of gas, dust, and stars held together by gravity. There are over 125 billion galaxies in the universe. The Milky Way galaxy contains our solar system and approximately 100 billion other stars. Galaxies come in three main shapes - spiral, elliptical, and irregular. Spiral galaxies have arms spiraling out from a central bulge, while elliptical galaxies are spherical or elliptical in shape.
The Solar System consists of the Sun and objects that orbit it, including 8 planets, dwarf planets, asteroids, and comets. The inner Solar System contains terrestrial planets like Earth that are composed of rock and metals. The outer Solar System contains gas giants like Jupiter and Saturn that account for most of the mass. Objects follow elliptical orbits around the Sun, with closer objects moving faster according to Kepler's laws of planetary motion. The Solar System is believed to have formed 4.6 billion years ago from the gravitational collapse of a giant molecular cloud.
Though i am not an applied physics /B.S.C physics student ,Science has always been something of my interest :) Presentation during "International School on Astronomy and Space Science organized by Ministry of Environment, Science and Technology and B.P. Koirala Memorial Planetorium, Observatory and Science Museum Development Board "
The document summarizes our current understanding of the structure and composition of the Milky Way Galaxy. It describes how observations across the electromagnetic spectrum have revealed that the Milky Way is a spiral galaxy with a disk, bulge, and halo structure, and that it contains around 100 billion stars and 1 trillion solar masses of total mass, most of which is dark matter. Precision measurements have also shown that the center of the Milky Way contains a supermassive black hole around 3 million times the mass of our Sun.
Nebulae are giant clouds of dust and gas found in space where stars are formed. They can be light years across and look fuzzy in appearance. When the gas and dust in a nebula collapses under its own gravity, it forms hot, dense cores where stars ignite and shine. Some nebulae glow due to radiation from young stars, called emission nebulae. Others reflect the light of stars, known as reflection nebulae. Planetary nebulae are formed when aging stars blow off their outer layers.
A star is a ball of plasma held together by gravity that undergoes nuclear fusion at its core, releasing electromagnetic radiation. Stars exist along a spectrum from hot, blue stars to cooler, red stars and can be classified based on their temperature, luminosity, and color. A star's life cycle begins as a contracting nebula and progresses through stages such as the main sequence, red giant, planetary nebula, and white dwarf before ending as a neutron star or black hole.
Galaxies come in different shapes and sizes. The largest are spiral galaxies which have a flattened disk with spiral arms and a bulge in the center. Elliptical galaxies have no definite shape and little gas or dust. Irregular galaxies have an irregular shape and active star formation. Well-known galaxies include the Andromeda Galaxy, Whirlpool Galaxy, Sombrero Galaxy, and Sunflower Galaxy.
Galaxies come in different sizes and types. They range from dwarfs with a few billion stars to giants with over 100 trillion stars. Galaxies are classified into three main types - ellipticals, spirals, and irregulars. The Hubble sequence further categorizes galaxies based on their visual structure into ellipticals, spirals, barred spirals, and lenticular galaxies. Spiral galaxies have a central bulge and spiral arms, while ellipticals are spherical or ellipsoidal. Interacting galaxies can trigger new star formation when their gas and dust interact during collisions.
Galaxies are collections of gas, dust, and stars held together by gravity. There are over 125 billion galaxies in the universe. The Milky Way galaxy contains our solar system and approximately 100 billion other stars. Galaxies come in three main shapes - spiral, elliptical, and irregular. Spiral galaxies have arms spiraling out from a central bulge, while elliptical galaxies are spherical or elliptical in shape.
The Solar System consists of the Sun and objects that orbit it, including 8 planets, dwarf planets, asteroids, and comets. The inner Solar System contains terrestrial planets like Earth that are composed of rock and metals. The outer Solar System contains gas giants like Jupiter and Saturn that account for most of the mass. Objects follow elliptical orbits around the Sun, with closer objects moving faster according to Kepler's laws of planetary motion. The Solar System is believed to have formed 4.6 billion years ago from the gravitational collapse of a giant molecular cloud.
Though i am not an applied physics /B.S.C physics student ,Science has always been something of my interest :) Presentation during "International School on Astronomy and Space Science organized by Ministry of Environment, Science and Technology and B.P. Koirala Memorial Planetorium, Observatory and Science Museum Development Board "
The moon orbits the Earth every 27 days on average at a distance of 384,400km. It was likely formed from debris ejected from Earth after a collision with a Mars-sized object. The different phases of the moon are caused by the illumination of its surface from the Sun as it orbits Earth. The moon's gravitational pull causes ocean tides on Earth and influences their size.
The document describes our Milky Way galaxy and the universe. It discusses the Milky Way's structure including the central bulge, disk with spiral arms, and halo. It also describes different types of galaxies like elliptical, spiral, and irregular galaxies. Key facts about stars and their evolution from nebulae to black holes are provided. Distances in space are explained using units like light years and tools like parallax.
There are several types of galaxies including spiral, elliptical, irregular, and barred galaxies. Spiral galaxies are the most common type and have tightly or loosely wound spiral arms. The Milky Way is a typical spiral galaxy located in the outer range of the galaxy. Other galaxy types include whirlpool galaxies like M51a, barred galaxies like NGC 1365, and elliptical galaxies which can be very large or small dwarf galaxies. Irregular galaxies have no distinct shape.
The document describes the Hubble tuning fork diagram for classifying galaxies. It outlines the main types of galaxies: elliptical, lenticular, spiral, and irregular. Elliptical galaxies are ellipsoidal and contain little gas/dust, while spirals have disks, bulges, and spiral arms with ongoing star formation. Lenticular galaxies are like ellipticals but with disks. Barred spirals have a central bar structure. Irregular galaxies have patchy star formation and dust distribution. The diagram is used to classify galaxies based on their visual structure but does not imply evolutionary relationships between types.
7.2 characteristics and evolution of starsmojavehack
1) Stars begin as clouds of dust and gases called nebulae. Under gravity, the gases condense to form protostars and begin nuclear fusion, becoming main sequence stars like our Sun.
2) As stars age, they expand and become red giants or supergiants after exhausting hydrogen fusion. Further fusion of helium produces carbon.
3) When further fusion is no longer possible, the star collapses into a white dwarf, neutron star, or black hole in a supernova explosion, depending on the star's original mass.
The Big Bang Theory describes how the universe began approximately 13.7 billion years ago from an extremely hot and dense state. As the universe rapidly expanded and cooled, simple subatomic particles formed and then combined to create the first atoms, which allowed light to travel freely. Observational evidence from the cosmic microwave background radiation and the abundance of light elements support the Big Bang Theory as the leading explanation for the origin and evolution of the known universe. Alternative models have been proposed but the Big Bang remains the prevailing cosmological model according to modern physics.
The document explains latitude and longitude by comparing it to a typical x-y graph, with latitude as the y-axis and longitude as the x-axis. Latitude ranges from 90° North to 90° South of the equator, while longitude ranges from 180° West to 180° East of the Prime Meridian. Together, a point's latitude and longitude can be used to locate it anywhere on Earth.
My class power point for a lesson outlining the Solar System. Students will be asked to pick one thing to continue researching for a later project after viewing the slide show presentation.
This document discusses theories of how the Solar System formed and describes the planets in our Solar System. It begins by explaining different historical theories for how the Sun, Earth, and planets formed. The most widely accepted today is the nebular hypothesis, which suggests the Solar System formed from a rotating cloud of gas and dust that condensed. It then provides details on the classification of objects in our Solar System and defines planets. Finally, it gives brief descriptions of the eight planets - Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
The Sun formed around 5 billion years ago from a cloud of gas and dust. Through the process of nuclear fusion at its core, the Sun generates immense heat and light by converting hydrogen into helium. It is a common yellow star that is part of a cycle that creates convection currents within its surface and sunspots that follow an 11-year cycle. The Sun provides the energy necessary to sustain life on Earth but will eventually exhaust its hydrogen fuel in around 5 billion years.
Volcanoes form when magma rises from below the Earth's surface and erupts through openings called vents. As magma builds up at the vent, it forms the volcano structure above ground. The main parts of a volcano include the vent, conduit that carries magma from the magma chamber below, and the cone or mountain shape built from erupted material. Volcanic eruptions can be explosive or quiet depending on the magma composition and amount of trapped gases.
Este documento clasifica y describe las diferentes etapas y tipos de estrellas. Comienza explicando que las estrellas se clasifican según su tamaño y temperatura y se ubican en el diagrama de Hertzsprung-Russell. Luego describe las etapas principales de una estrella masiva como el estado primario, gigante roja, supergigante y supernova, así como también estrellas menos masivas como enanas y variables.
Types of galaxies
You can edit this powerpoint for your own presentation but don't re-upload.
I used hyperlink(especially on images) and alot of animation.
A galaxy is a large group of stars, gas, and dust held together by gravity. The three main types of galaxies are elliptical, spiral, and irregular galaxies. A spiral galaxy has a central bulge and outer disk with spiral arms. The Milky Way galaxy is a large barred spiral galaxy that contains our solar system. A star is a luminous ball of gas that produces energy through nuclear fusion at its core. There are several stages in a star's life including protostars, main sequence stars, red giants, and white dwarfs.
The document discusses the composition, temperature, size, and motion of stars. It can be determined that a star's composition and temperature by analyzing its spectrum using a spectrograph. The spectrum will show dark lines that indicate the elements present in the star. A star's motion can be apparent, due to Earth's movement, or actual through its rotation, revolution, or Doppler shift as it moves towards or away from Earth. The document also summarizes the life cycles of stars from their formation in nebulae to their evolution into objects like white dwarfs, neutron stars, or black holes.
This document discusses the Hertzsprung-Russell diagram (H-R diagram), which plots stars' brightness against their surface temperatures. It shows that 90% of stars are average "main sequence" stars that are not too bright, hot, or large. The remaining 10% are "giants", "supergiants", and "white dwarfs". The H-R diagram demonstrates that hotter stars are usually brighter, while cooler stars appear dimmer.
All stars begin as clouds of dust and gas called nebulae. When gravity causes the nebula to collapse, a protostar forms at the center. The protostar grows in size and temperature through nuclear fusion reactions until it becomes a stable main sequence star. Small stars like our Sun will eventually expand into red giants and shed their outer layers, leaving behind dense white dwarf cores. Larger stars may explode as supernovae, collapsing into neutron stars or black holes. The life cycle of a star depends on its initial mass, with smaller stars ending as white dwarfs and more massive stars ending as black holes or neutron stars.
Parallels and meridians are imaginary lines used to locate places on Earth. Parallels circle the Earth parallel to the equator and measure latitude, while meridians run from pole to pole, with the Greenwich meridian at 0 degrees measuring longitude. Together, the lines of latitude and longitude provide coordinates that uniquely identify locations worldwide.
Life Science Frameworks For 8th Grade Sciencejrt004
This document outlines the life science frameworks for 8th grade science. It includes 17 objectives covering genetics topics like dominant and recessive traits, using Punnett squares to predict patterns from genetic crosses, how genotype relates to phenotype, genetic variation within species, comparing plant and animal traits, evolution concepts like the fossil record and natural selection, and how environmental changes affect organism survival. Students will observe and classify traits, use Punnett squares, predict patterns from crosses, and demonstrate how genetics influence physical characteristics.
The document discusses that the Qur'an is the word of Allah, and cites the Qur'an verse 51:47. It also lists two references about the Qur'an and astronomy - a book by S. Waqar Ahmed Husaini discussing Quranic verses related to astronomy and earth exploration from space, and a Time magazine webpage about astronomer Hubble.
The moon orbits the Earth every 27 days on average at a distance of 384,400km. It was likely formed from debris ejected from Earth after a collision with a Mars-sized object. The different phases of the moon are caused by the illumination of its surface from the Sun as it orbits Earth. The moon's gravitational pull causes ocean tides on Earth and influences their size.
The document describes our Milky Way galaxy and the universe. It discusses the Milky Way's structure including the central bulge, disk with spiral arms, and halo. It also describes different types of galaxies like elliptical, spiral, and irregular galaxies. Key facts about stars and their evolution from nebulae to black holes are provided. Distances in space are explained using units like light years and tools like parallax.
There are several types of galaxies including spiral, elliptical, irregular, and barred galaxies. Spiral galaxies are the most common type and have tightly or loosely wound spiral arms. The Milky Way is a typical spiral galaxy located in the outer range of the galaxy. Other galaxy types include whirlpool galaxies like M51a, barred galaxies like NGC 1365, and elliptical galaxies which can be very large or small dwarf galaxies. Irregular galaxies have no distinct shape.
The document describes the Hubble tuning fork diagram for classifying galaxies. It outlines the main types of galaxies: elliptical, lenticular, spiral, and irregular. Elliptical galaxies are ellipsoidal and contain little gas/dust, while spirals have disks, bulges, and spiral arms with ongoing star formation. Lenticular galaxies are like ellipticals but with disks. Barred spirals have a central bar structure. Irregular galaxies have patchy star formation and dust distribution. The diagram is used to classify galaxies based on their visual structure but does not imply evolutionary relationships between types.
7.2 characteristics and evolution of starsmojavehack
1) Stars begin as clouds of dust and gases called nebulae. Under gravity, the gases condense to form protostars and begin nuclear fusion, becoming main sequence stars like our Sun.
2) As stars age, they expand and become red giants or supergiants after exhausting hydrogen fusion. Further fusion of helium produces carbon.
3) When further fusion is no longer possible, the star collapses into a white dwarf, neutron star, or black hole in a supernova explosion, depending on the star's original mass.
The Big Bang Theory describes how the universe began approximately 13.7 billion years ago from an extremely hot and dense state. As the universe rapidly expanded and cooled, simple subatomic particles formed and then combined to create the first atoms, which allowed light to travel freely. Observational evidence from the cosmic microwave background radiation and the abundance of light elements support the Big Bang Theory as the leading explanation for the origin and evolution of the known universe. Alternative models have been proposed but the Big Bang remains the prevailing cosmological model according to modern physics.
The document explains latitude and longitude by comparing it to a typical x-y graph, with latitude as the y-axis and longitude as the x-axis. Latitude ranges from 90° North to 90° South of the equator, while longitude ranges from 180° West to 180° East of the Prime Meridian. Together, a point's latitude and longitude can be used to locate it anywhere on Earth.
My class power point for a lesson outlining the Solar System. Students will be asked to pick one thing to continue researching for a later project after viewing the slide show presentation.
This document discusses theories of how the Solar System formed and describes the planets in our Solar System. It begins by explaining different historical theories for how the Sun, Earth, and planets formed. The most widely accepted today is the nebular hypothesis, which suggests the Solar System formed from a rotating cloud of gas and dust that condensed. It then provides details on the classification of objects in our Solar System and defines planets. Finally, it gives brief descriptions of the eight planets - Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
The Sun formed around 5 billion years ago from a cloud of gas and dust. Through the process of nuclear fusion at its core, the Sun generates immense heat and light by converting hydrogen into helium. It is a common yellow star that is part of a cycle that creates convection currents within its surface and sunspots that follow an 11-year cycle. The Sun provides the energy necessary to sustain life on Earth but will eventually exhaust its hydrogen fuel in around 5 billion years.
Volcanoes form when magma rises from below the Earth's surface and erupts through openings called vents. As magma builds up at the vent, it forms the volcano structure above ground. The main parts of a volcano include the vent, conduit that carries magma from the magma chamber below, and the cone or mountain shape built from erupted material. Volcanic eruptions can be explosive or quiet depending on the magma composition and amount of trapped gases.
Este documento clasifica y describe las diferentes etapas y tipos de estrellas. Comienza explicando que las estrellas se clasifican según su tamaño y temperatura y se ubican en el diagrama de Hertzsprung-Russell. Luego describe las etapas principales de una estrella masiva como el estado primario, gigante roja, supergigante y supernova, así como también estrellas menos masivas como enanas y variables.
Types of galaxies
You can edit this powerpoint for your own presentation but don't re-upload.
I used hyperlink(especially on images) and alot of animation.
A galaxy is a large group of stars, gas, and dust held together by gravity. The three main types of galaxies are elliptical, spiral, and irregular galaxies. A spiral galaxy has a central bulge and outer disk with spiral arms. The Milky Way galaxy is a large barred spiral galaxy that contains our solar system. A star is a luminous ball of gas that produces energy through nuclear fusion at its core. There are several stages in a star's life including protostars, main sequence stars, red giants, and white dwarfs.
The document discusses the composition, temperature, size, and motion of stars. It can be determined that a star's composition and temperature by analyzing its spectrum using a spectrograph. The spectrum will show dark lines that indicate the elements present in the star. A star's motion can be apparent, due to Earth's movement, or actual through its rotation, revolution, or Doppler shift as it moves towards or away from Earth. The document also summarizes the life cycles of stars from their formation in nebulae to their evolution into objects like white dwarfs, neutron stars, or black holes.
This document discusses the Hertzsprung-Russell diagram (H-R diagram), which plots stars' brightness against their surface temperatures. It shows that 90% of stars are average "main sequence" stars that are not too bright, hot, or large. The remaining 10% are "giants", "supergiants", and "white dwarfs". The H-R diagram demonstrates that hotter stars are usually brighter, while cooler stars appear dimmer.
All stars begin as clouds of dust and gas called nebulae. When gravity causes the nebula to collapse, a protostar forms at the center. The protostar grows in size and temperature through nuclear fusion reactions until it becomes a stable main sequence star. Small stars like our Sun will eventually expand into red giants and shed their outer layers, leaving behind dense white dwarf cores. Larger stars may explode as supernovae, collapsing into neutron stars or black holes. The life cycle of a star depends on its initial mass, with smaller stars ending as white dwarfs and more massive stars ending as black holes or neutron stars.
Parallels and meridians are imaginary lines used to locate places on Earth. Parallels circle the Earth parallel to the equator and measure latitude, while meridians run from pole to pole, with the Greenwich meridian at 0 degrees measuring longitude. Together, the lines of latitude and longitude provide coordinates that uniquely identify locations worldwide.
Life Science Frameworks For 8th Grade Sciencejrt004
This document outlines the life science frameworks for 8th grade science. It includes 17 objectives covering genetics topics like dominant and recessive traits, using Punnett squares to predict patterns from genetic crosses, how genotype relates to phenotype, genetic variation within species, comparing plant and animal traits, evolution concepts like the fossil record and natural selection, and how environmental changes affect organism survival. Students will observe and classify traits, use Punnett squares, predict patterns from crosses, and demonstrate how genetics influence physical characteristics.
The document discusses that the Qur'an is the word of Allah, and cites the Qur'an verse 51:47. It also lists two references about the Qur'an and astronomy - a book by S. Waqar Ahmed Husaini discussing Quranic verses related to astronomy and earth exploration from space, and a Time magazine webpage about astronomer Hubble.
The document provides an overview of the universe and some of its key components. It defines the universe as all matter and energy, including planets, stars, galaxies and intergalactic space. Scientific observations have led to inferences about the early stages of the universe, supported by the Big Bang theory which describes the formation of the universe approximately 13.77 billion years ago. Stars are fundamental building blocks of galaxies and are responsible for producing heavy elements. Galaxies are massive gravitationally bound systems consisting of stars, gas and dust, with the Milky Way being the galaxy that contains our solar system.
The document defines the universe as the totality of existence including planets, stars, and galaxies. It then provides information about the solar system, including details about Mercury, Venus, Earth, Mars, asteroids, and all the major planets ending with Pluto. It notes there are over 300 billion stars in the Milky Way galaxy and 100 billion galaxies in the visible universe. The document also briefly discusses scientific observations of the universe, the Big Bang theory, and notes some interesting facts like the number of grains of sand on Earth's beaches is approximately equal to the total number of stars in the universe.
The document defines basic vocabulary related to the Solar System, including terms like universe, galaxy, Milky Way, Solar System, Sun, planets which are divided into inner planets like Mercury, Venus, Earth, Mars and outer planets like Jupiter, Saturn, Uranus, Neptune. It also mentions dwarf planets like Pluto and other celestial bodies such as comets, asteroids, and satellites, and describes their rotational and translational movements as well as elliptical orbits around the Sun.
The document provides an overview of the 8th grade science curriculum map for Arizona. It outlines the organization of the curriculum into units, clusters, and standards. The map provides essential questions, big ideas, common misconceptions, standards, and resources for each cluster to guide instruction. The purpose is to ensure all required content is taught in a logical progression. Suggested projects are also included to encourage connections between topics and higher-order thinking. Formative assessments are to be given for each cluster to check student understanding of the standards.
The document discusses the history and development of measurement systems. It explains that ancient systems used body parts and food but the modern International System of Units (SI or metric system) was developed in the 1700s by French scientists to be simple, reliable and use a base-10 system with prefixes. The SI system's base units are the meter (length), gram (mass), liter (liquid volume), and Kelvin or Celsius (temperature). Examples are given showing how these units are used to measure common objects.
This document provides an overview of key concepts related to heat and temperature. It defines temperature as a measure of the average kinetic energy of particles, and explains how thermometers measure temperature changes via thermal expansion. The three main temperature scales are described, including absolute zero as the temperature where molecular motion stops. The document then discusses heat transfer through conduction, convection, and radiation. It also covers concepts like specific heat, states of matter, and how chemical energy is obtained from foods and released in reactions that can be measured using a calorimeter.
This document discusses the key skills and topics covered in 8th grade science, including learning the scientific method, conducting experiments, measuring and recording data, presenting findings, and collaboration. It mentions that part two will cover chemistry.
The document discusses passive solar heating (PSH) design, which involves collecting solar energy through south-facing windows, storing that energy in building materials with high heat capacity, and distributing the stored solar energy throughout the living space. It describes the key components of a PSH system - the aperture (windows), absorber, thermal mass for storage, distribution methods, and controls. It also evaluates different materials for their suitability as a thermal mass, selecting concrete as the best option based on its high value of thermal conductivity over thermal diffusivity and relatively low cost.
This document lists and describes 8 different types of cells: bone cells, bacteria cells, muscle cells, nerve cells, onion root cells, red blood cells, leaf cells, and skin cells. It provides a brief overview of the main cell types found in the human body and other living organisms without extensive details about each.
This document discusses energizing science classrooms through kinesthetic activities. It recommends using techniques like "Power Teaching" which uses loud repetitions and gestures to teach rules. Example activities described include having students march while calling out vocabulary words and their assigned actions, trading vocabulary cards and teaching the words to partners, and using online resources for additional energizers. Effective classroom management is emphasized to implement these energized practices, with examples of guideline infraction notices provided.
This document discusses passive solar design strategies for heating buildings, including direct gain, thermal storage walls, sunspaces, and convective air loops. It provides details on the key components and design considerations for each strategy. Direct gain involves south-facing windows that admit winter sunlight into a building's interior where it is absorbed by thermally massive materials. Thermal storage walls consist of a south-facing wall constructed of masonry or water containers that absorb heat from the sun. Sunspaces are glassed-in rooms used to capture solar heat. Convective air loops use air flow to transfer heat from solar collectors to a rockbed storage system.
This document discusses heat engines and their classification. It describes heat engines as devices that convert chemical energy to heat energy and then mechanical work. Heat engines are classified as either external or internal combustion engines. The document then covers common heat engine cycles like the Carnot, Rankine, Otto, and Diesel cycles. It provides details on the processes, diagrams, applications, and limitations of each cycle.
Fuels provide energy through a process of energy transformation called combustion. The three major fossil fuels are coal, oil, and natural gas. Fossil fuels are nonrenewable resources that were formed over millions of years from the remains of ancient organisms. While fossil fuels provide a large amount of the energy used today, they are being consumed faster than they are produced, so new energy sources will be needed to replace decreasing fossil fuel reserves.
Alternative energy sources presentationShahan Saheed
The document discusses various alternative energy sources as replacements for fossil fuels to mitigate global warming. It describes solar power including the photovoltaic process to convert sunlight to electricity and thermal solar to heat water. Challenges with solar include high costs and lack of energy at night. The document also covers thermal power stations in Sri Lanka and companies involved in alternative energy implementation. Wind power is discussed as an option for rural communities through micro-grids.
Describes natures own mathematical representation of existence.
Introduces a quantum field theory of everything in the universe based on a new foundation for mathematics that are closed, complete, and consistent in the universal domain. Describes the infinite singularity and how it relates to to time, space, energy, dark energy, matter and dark matter.
Fossil fuels are fuels formed from the remains of ancient organisms. The three main types are coal, petroleum (oil), and natural gas. Coal forms from peat deposits subjected to heat and pressure over millions of years. Oil forms from the remains of ancient marine organisms. Natural gas forms in association with oil deposits or alone. These fossil fuels are important energy sources that are burned to produce electricity, heat homes, and power vehicles and industry. Refineries process crude oil into useful products like gasoline and plastics. Major oil spills like Exxon Valdez and Deepwater Horizon cause environmental damage that can last for decades.
The document summarizes key concepts in astronomy, including:
- Astronomy is the study of objects outside Earth, while astrology uses celestial objects to predict events.
- Light and other electromagnetic radiation provide information about distant stars and galaxies. Spectral analysis reveals the composition of stars.
- The universe is immense, with distances measured in light years due to the finite speed of light. Stars have different properties based on size, temperature, brightness, and more.
- Stars evolve over their lifetime according to nuclear fusion processes in their cores until ending as white dwarfs, neutron stars, or black holes depending on their mass.
- Galaxies come in spiral, elliptical, and irregular forms, with the Milky Way
The document summarizes key concepts about the solar system, including:
- The solar system is made up of the sun and eight planets that orbit around it, along with moons, asteroids, and comets.
- The earth spins on its axis, causing day and night, and its tilt and orbit around the sun cause the seasons in the northern and southern hemispheres.
- Nuclear fusion in the sun's core converts hydrogen to helium, releasing enormous amounts of energy that allow it to shine.
T1. solar system 3, plates, orbits, periods, light,jaume2014
The document provides information about the solar system, including:
- The eight planets that orbit the sun in elliptical orbits, along with their relative sizes, masses, distances from the sun, and orbital periods.
- Other objects in the solar system like moons, asteroids, meteoroids, and comets are described.
- Concepts like reflection, light, shadows, day and night, and planetary rotation are explained. Experiments are suggested to investigate light, shadows, and reflection.
- Key data on planetary properties are presented in a table for comparison, and a graph shows the relationship between orbital distance and period.
This document provides an overview of key concepts in astronomy to be covered in Unit 2. It discusses scaling in the universe from solar systems to galaxies to the observable universe. It describes the Milky Way galaxy and theories of the formation and age of the universe based on evidence from the Big Bang like cosmic background radiation and redshift. It also summarizes formation of the solar system, properties of planets and other celestial objects, fusion in stars, phases of the moon, tides, and types of eclipses.
This document discusses key concepts about the night sky and Earth's motions:
- It describes how astronomers organize the night sky into constellations to locate objects, and how Earth's rotation causes day/night and its orbit causes the seasons.
- It explains that the moon's orbit creates its phases and lunar/solar eclipses can occur when the sun, earth, and moon are aligned.
- It discusses how Earth's tilted axis and orbit around the sun cause the seasons, and how precession causes the north star to change over thousands of years.
The document provides an overview of the history and development of astronomy. It discusses early astronomical observations dating back to 2000 BC and important discoveries by Galileo and Kepler. These include Galileo's observation of craters on the Moon and sunspots, and Kepler's laws of planetary motion. It also outlines several key concepts and tools in astronomy including light years, astronomical units, celestial coordinates, and telescopes. Finally, it provides a brief introduction to cosmology and the formation of the Milky Way galaxy in line with the two-stage collapse model.
The document provides information about astronomy and the solar system. It begins by defining astronomy and describing early astronomers like Copernicus and Galileo. It then discusses concepts like the universe, galaxies, and the Milky Way galaxy. The bulk of the document is focused on defining and describing components of the solar system, including the sun, planets like Earth, Venus, and Mercury, and units like light years and astronomical units. It provides details on concepts like planetary orbits, rotations, and transits. The summary concludes with an overview of the key topics covered.
The document discusses three main theories about the origin and evolution of the universe: the Big Bang theory, the Steady State theory, and the Oscillating Universe theory. It provides details about each theory and the evidence that supports them, including the work of astronomers like Edwin Hubble, Vesto Slipher, and Robert Dicke. It also covers topics like the design and age of the universe, the classification and life cycles of stars, and properties of galaxies.
This document defines terms related to astronomy and space science. It provides definitions for terms like altitude, azimuth, aurora, chromosphere, convection zone, corona, coronal hole, flare, photosphere, prominence, solar constant, solar cycle, solar eclipse, solar maximum, solar minimum, and solar wind. It also defines terms like sun, sunspot, sunspot cycle, absolute brightness, angular resolution, angular size, apparent brightness, arc minute, arc second, astronomer, astronomical unit, baseline, blueshift, celestial sphere, collecting area, constellation, core, cosmic abundances, declination, degree of arc, differentiation, diffraction grating, ellipse, field of view, geocentric, infrared telescope
The document summarizes key information about astronomy and the universe:
1) The universe started as a single extremely dense point that exploded in an enormous explosion known as the Big Bang around 12-15 billion years ago and has been expanding ever since.
2) Evidence for the expansion of the universe comes from the Doppler effect observed in the redshift of light from galaxies moving away from us as the universe expands.
3) Astronomers use large units like light years to measure the vast distances between celestial objects, where one light year is the distance light travels in one year.
Hello, I am Subhajit Pramanick. I and my classmate, Shivani Gupta, both presented this ppt in seminar of our university, Banaras Hindu University. Here it is the experiment how to determine Synodic and Sidereal time period of rotation of the Sun by tracing Sun spots. This presentation consists both the theory as well as experiment part. We hope you will all enjoy by reading this presentation. Thank you.
The universe contains billions of galaxies, each with billions of stars. A galaxy is a group of stars held together by gravity, and there are three main types of galaxies: spiral, elliptical, and irregular. Stars are formed from the collapse of large clouds of dust and gas under the force of gravity. Our solar system contains eight planets that orbit the Sun, including Earth. Copernicus first proposed that planets orbit the Sun, while Kepler developed the three laws of planetary motion describing their elliptical orbits and periods.
The document discusses three main theories about the origin and evolution of the universe: the Big Bang theory, the Steady State theory, and the Oscillating Universe theory. It provides details about each theory and the evidence that supports them, including the work of astronomers like Edwin Hubble, Vesto Slipher, and Fred Hoyle. It also covers the expansion of the universe as observed through redshift and Hubble's law.
The document discusses three main theories about the origin and evolution of the universe: the Big Bang theory, the Steady State theory, and the Oscillating Universe theory. It provides details about each theory and the evidence that supports them, including the work of astronomers like Edwin Hubble, Vesto Slipher, and Fred Hoyle. It also covers the expansion of the universe as observed through redshift and Hubble's law.
Astronomy 161 – Spectroscopy Lab Introduction The li.docxrock73
Astronomy 161 – Spectroscopy Lab
Introduction:
The light of celestial objects contains much information hidden in its detailed color
structure. In this lab we will separate the light from some sources into constituent colors and use
spectroscopy to find out the chemical constitution of known and unknown gases. The same
procedure is used for starlight, telling us what its source is composed of. The baseline is a
laboratory experiment with known materials, and later we can compare the unknown to what we
already know.
Hot, glowing bodies like a light
bulb, or the Sun, glow in all the colors of
the spectrum. All these colors together
appear as white light. When such white
light hits a prism, or a raindrop, or a
diffraction grating, colors get separated
according to their wavelength. Red, with
its wavelength of 600 nm to 700 nm, is
deflected least and ends up on one edge of
the spectrum – or the rainbow when sunlight hits a raindrop after a storm. Blue, wavelength
around 400 nm, is the other end of the visible spectrum. An infinite number of elementary colors
are located between these two edges, each corresponding to its own wavelength. An
incandescent light bulb radiates a continuous spectrum. All colors are present in this “thermal
glow”, and it is impossible to tell what the chemical composition of the source is.
However, other physical processes produce different spectra. A fluorescent light tube
works, crudely speaking, on the principle of lightening. Electrons rush from the negative pole to
the positive pole inside, and hit gas atoms in the tube, making them emit light. This sort of light
contains only a few colors, and is called “emission spectrum”. When we separate the colors of
such light, only a few bright “emission” lines appear, each in its own color (and wavelength).
Each sort of an atom will emit light at its own particular set of wavelengths. When we analyze
the emission spectrum of an unknown source, we can compare the colors of its spectral lines to
known spectral lines we see in a laboratory, and tell which substance matches.
The color of spectral lines is directly
related to the structure of the atoms. Electrons
can jump from one orbit around the atomic
nucleus to another, giving off the difference in
energy levels in the form of light. The
wavelength (color) of light is related to the
amount of energy freed up between the old and
the new orbit. In this laboratory we will measure
the wavelengths of spectral lines from a few
gases, which are easy to put inside a discharge
tube. Other chemical elements would have
different spectra.
In the spectroscope that we use in this
laboratory, a diffraction grating (many parallel
black lines drawn very tightly on a little piece of
film) breaks up the light entering through the input slit into colored lines. Each color corresponds
to a wavelength, measured in nanometers (1 nm = 10-9 m).
Instructions:
In
this
investigation
...
1. The document discusses various units of distance used in astronomy including the astronomical unit (AU), parsec, and light-year.
2. It provides conversions between these units, for example 1 AU = 149,597,870,700 m, 1 parsec = 3.086 x 1016 m, and 1 light-year = 9.460530 x 1015 m.
3. The document also contains information about constellations, galaxies, and how astronomers study distant objects that cannot be touched.
The document provides an overview of the mysteries of the Sun, including:
- The heliosphere is the outer atmosphere of the Sun that marks the edge of its magnetic influence. Voyager probes have reached the heliosheath region between the termination shock and heliopause.
- The Sun's anatomy includes internal layers like the core, radiative zone, and convection zone. Surface features include granules, sunspots, and prominences in the chromosphere and corona.
- The solar dynamo and differential rotation within the Sun generate its magnetic field through a twisting process, which drives the 11-year solar cycle of activity.
1. The document describes the motions of objects in the sky and our location in the universe, including a description of the Milky Way galaxy and our solar system.
2. Key concepts covered include the coordinate systems used to locate celestial objects, precession of the Earth, and the causes of the seasons due to the tilt of the Earth's axis.
3. Motions of objects like the sun and stars are explained, including how the sun appears to move along the ecliptic and causes the seasons as the Earth orbits around it.
Stars are giant balls of gas that produce light and heat through nuclear fusion reactions in their cores. Astronomers can determine properties of stars like temperature, luminosity, and composition by analyzing their spectra. Stars evolve over their lifetimes, with more massive stars having shorter lives and ending as supernovae. Galaxies contain billions of stars and come in spiral, elliptical, and irregular shapes. The universe originated in a massive expansion known as the Big Bang around 13.8 billion years ago.
Ancient civilizations used the motions of celestial bodies like the moon and stars to develop calendars and tell time. They observed that the sun's path through the sky shifted over the course of a year, marking seasons. The geocentric model viewed Earth as the center of the universe, with objects like the sun and stars orbiting around it. Stars twinkle due to differences in the density of Earth's atmosphere refracting light. Stars are born from collapsing clouds of gas and undergo various stages of life depending on their mass, eventually ending as white dwarfs, neutron stars, or black holes.
Periodic table and density study guide 2011fearonc
The document contains information about various chemistry concepts like density, physical and chemical changes, atomic structure, and the periodic table. It provides definitions and examples for key terms. Multiple choice and fill-in-the-blank questions are included along with explanations of the answers to help test and reinforce understanding of important chemistry topics.
The document discusses the differences between velocity and speed. It explains that velocity is a vector that includes both magnitude and direction of motion, while speed only refers to magnitude. It provides an example of knowing an object's speed but not its direction, making the velocity unknown. Velocity is defined as the rate of motion in a specific direction. Speed with a direction is velocity.
The document provides information about various astronomical terms and concepts. It defines a nebula as an interstellar cloud of dust and gas that is the first stage of a star's life cycle. It states that depending on its mass, a star may live anywhere from 10 million to 200 billion years. It also notes that less massive stars will live longer than more massive stars.
The document discusses key information provided by an element's location on the periodic table. It explains that the periodic table columns called groups tell us an element's chemical and physical properties as well as the number of electrons in its outer shell. The document also states that an element's atomic number tells the number of protons and its atomic mass tells the number of protons and neutrons. It recommends an interactive website that covers all topics likely to be on a test of the periodic table.
This document contains a series of category headings with no additional information below them. It also contains several short passages of text providing definitions, explanations, or worked out examples for science concepts like the metric system, units of measurement, graphing, experimental design, and the scientific method. However, there is no clear overall topic or connecting information between the different sections.
The document discusses various scientific concepts including theories, hypotheses, laws, and the scientific method. It provides examples of scientific theories such as the theory of gravity, cell theory, and the theory of evolution. It also discusses the importance of scientific literacy in evaluating information and making decisions. Pseudoscience is defined as a set of beliefs that may use science but are based on subjective reasoning. The last part discusses why it's important for people to understand scientific principles and think scientifically so they don't fall for scams and can make better informed decisions.
The Milky Way galaxy is a barred spiral galaxy. All stars begin as part of a nebula, which is an interstellar cloud of dust, hydrogen gas, and plasma. It is the first stage of a star's cycle. Parallax is used to determine a star's distance, and the force that pulls together the matter in stars is gravity, the strength of which depends on the mass and distance between objects. Depending on its mass, a star may live from 10 million to 200 billion years.
The document lists terms related to astronomical sizes from biggest to smallest:
1. Universe - Everything that exists within the observable universe since the Big Bang.
2. Galaxy - Structures formed by assemblies of stars, gas and dust. Our galaxy, the Milky Way, is just one of billions.
3. Solar system - The Sun and celestial bodies that orbit it, including planets and their moons.
4. Star - Giant balls of gas that produce energy through nuclear reactions.
5. Planet - Large spherical bodies that orbit stars.
6. Moon - Natural satellites that orbit planets.
This document provides definitions and brief explanations for various terms related to astronomy and the solar system. It addresses topics like the definitions of heliocentric system, planetesimals, and astronomical unit. It also summarizes characteristics of objects like the inner planets, outer planets, Jupiter, and Mars. The document lists the order of planets from the Sun and identifies Mercury as the smallest planet. Overall, the document concisely defines key terms and outlines distinguishing features of astronomical bodies in our solar system.
This document summarizes different types of animal behaviors including reflexes, instincts, learning, communication, imprinting, aggression, territory, and circadian rhythms. Reflexes are automatic responses that do not involve the brain, while instincts are innate complex patterns of behavior. Animals communicate through sound, light, and pheromones. Imprinting is why young animals follow their parents, first described by Konrad Lorenz. Learning develops through experience, trials, and conditioning. Courtship behaviors occur before mating. Territories are areas animals defend. Stimuli prompt responses in stimulus-response behaviors. Nocturnal animals are active at night, having adaptations like large eyes, while diurnal animals are active during the day.
This document provides definitions and explanations of key genetics terms:
- A human baby with two X chromosomes is female, while one with an XY chromosome is male.
- Gregor Mendel is known as the father of genetics. He was an Austrian monk.
- Incomplete dominance in genetics is exemplified by variations in coat color seen in purebred dogs.
- A Punnett square uses capital letters to represent dominant alleles and predicts possible genotypes of offspring.
The document summarizes information about the circulatory system and blood. It discusses topics like pulmonary circulation, the four chambers of the heart, arteries and capillaries, ventricles, sickle cell anemia, leukemia, the sequence of pulmonary circulation, veins, platelets, plasma, hemoglobin, the four main functions of blood, lymphatic system movement, the four main parts of blood, wound healing, blood types, systolic and diastolic blood pressure, and blood donation compatibility. It provides definitions and brief explanations of these key circulatory and blood terms.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
How to Fix the Import Error in the Odoo 17Celine George
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
How to Manage Your Lost Opportunities in Odoo 17 CRMCeline George
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
Thinking of getting a dog? Be aware that breeds like Pit Bulls, Rottweilers, and German Shepherds can be loyal and dangerous. Proper training and socialization are crucial to preventing aggressive behaviors. Ensure safety by understanding their needs and always supervising interactions. Stay safe, and enjoy your furry friends!
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
हिंदी वर्णमाला पीपीटी, hindi alphabet PPT presentation, hindi varnamala PPT, Hindi Varnamala pdf, हिंदी स्वर, हिंदी व्यंजन, sikhiye hindi varnmala, dr. mulla adam ali, hindi language and literature, hindi alphabet with drawing, hindi alphabet pdf, hindi varnamala for childrens, hindi language, hindi varnamala practice for kids, https://www.drmullaadamali.com
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
Fcat review science 8th grade
1.
2. Put the terms in order from
BIGGEST to smallest: solar system,
galaxy, universe, star, planet,
moon UNIVERSE, GALAXY, SOLAR
SYSTEM, STAR, PLANET, MOON
3. UNIVERSE-Everything that exists. The size of the observable Universe is determined
by the distance light has travelled since the Universe was formed in the Big Bang, 12 - 15
billion years ago.
Galaxy-The structure formed by as assembly of thousands of millions of stars together
with gas and dust. Our galaxy, the Milky Way, is a spiral galaxy. Galaxies may be
described as elliptical, irregular or spiral. Our galaxy is just one among many billions.
Solar system-The Sun and the collection of celestial bodies that orbit it. These include
the nine planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and
Pluto) and their 60 moons, the asteroid belt, the comets and the Kuiper belt.
Star-Giant ball of gas in space which produces vast amounts of energy through nuclear
reactions in its core. There are many different types of stars, which are classified
according to their temperatures, colors, ages and compositions.
Planet-Large, spherical, rocky or icy
body which orbits the Sun or another
star.
Moon-(1) The Earth's satellite, which
orbits at a distance of 384 500 km. Its
mass is one-eightieth (1/80) and its
gravity one-sixth (1/6) of the Earth's.
Surface temperatures range from 80400 K. It has no atmosphere.
(2) General name also given to natural
satellites, e.g., the moon of Jupiter and
Saturn.
http://htwins.net/scale/ click to have
mind BLOWN
http://www.esa.int/esaSC/SEM763S1VED_index_0.html
4. What is the most commonly used measurement for
large distances used by astronomers? What does this
term mean?
5. LIGHT YEAR OR PARSEC A light-year, is a unit of length,
equal to just under 10 trillion kilometres (10×1015 metres, or
about 6 trillion miles). As defined by the
International Astronomical Union (IAU), a light-year is the
distance that light travels in a vacuum in one Julian year.[1]The
light-year is often used to measure distances to stars and other
distances on a galactic scale, especially in non-specialist and
popular science publications.
The preferred unit in astrometry is the parsec, because it
can be more easily derived from, and compared with,
observational data. The parsec is defined as the distance at
which an object will appear to move one arcsecond of parallax
when the observer moves one astronomical unit perpendicular
to the line of sight to the observer, and is equal to
approximately 3.26 light-years.[1]
http://en.wikipedia.org/wiki/Light-year
6. What word best describes the
number of galaxies in the
Universe? Hundreds, thousands,
millions, billions?
7. What word best describes the Number of
galaxies in the Universe? B B B Billions!
CLICK HERE FOR GREAT SHORT ABOUT THE UNIVERSE
9. What do astronomers call the distance from our Sun
to the Earth? AU astronomical Unit
1 AU = 149,597,870.691 kilometers
Definition: An Astronomical Unit is approximately
the mean distance between the Earth and the Sun…
Since an AU is based on radius of a circular orbit, one
AU is actually slightly less than the average distance
between the Earth and the Sun (approximately 150
million km or 93 million miles).
http://neo.jpl.nasa.gov/glossary/au.html
10. How do scientists know if a
star/planet is moving away from or
towards us?
11. How do scientists know if a star/planet is moving away from or towards
us? RED SHIFT 'Red shift' is a key concept for astronomers. The term can
be understood literally - the wavelength of the light is stretched, so the
light is seen as 'shifted' towards the red part of the spectrum.
BLUE SHIFT When a distant object moves toward the observer the lines
in its spectrum shift to shorter (bluer) wavelengths. This is because of the
apparent compression of the wave of light. As a result of this compression
the wavelength shortens and thus shifts towards the blue side of the
electromagnetic spectrum. The blueshift of an astronomical object is an
indication of the speed at which this object is approaching the observer.
Go to
http://coolcosmos.ipac.caltech.edu/cosmic_classroom/cosmic_reference/redsh
for more info.
http://www.esa.int/esaSC/SEMLJ0S1VED_index_0.html
13. What causes tides on Earth?
Position of earth, moon , sun
http://www.youtube.com/watch?v=gftT3wHJGtg
Click on the youtube link for more information
14. Draw a spring tide. (include the earth, moon, sun,
and tide)
15. Draw a spring tide. (include the earth, moon, sun, and
tide) the earth moon and sun are LINED UP!
16. Draw a neap tide. (include the earth, moon, sun, and
tide)
18. Name the planets in OUR solar system starting with the
Sun and travelling further away.
My very easy method; just set up nine planets
mercury
Venus
Earth
mars
Jupiter
Saturn
Uranus
Neptune
Pluto (no longer a planet due to dirty orbit but one
day will be a planet again!)
19. What determines the gravity of a
star, moon, or planet?
ITS MASS AND RADIUS
MORE mass and LESS Radius = more gravity
The biggest factor for gravity is MASS
TWO OBJECTS IN SPACE ARE affected by their
MASS and DISTANCE.
20. What is ABSOLUTE magnitude(brightness)?
How bright a star would appear if it were viewed
at a standard distance of 10 parsecs. (1 parsec =
3.26 light years)
Think about it like this… if you
have a super bright flashlight
that is far away and a not so
bright flashlight that is IN YOUR
FACE. The not so bright light
appears brighter. (apparent
magnitude)
To have an ABSOLUTELY fair
and accurate test of brightness,
you would need to put both flash
lights the SAME distance away
(absolute brightness)
21. What is APPARENT magnitude(brightness)?
How bright a star APPEARS FROM HERE (Earth)
Think about it like this… if you
have a super bright flashlight
that is far away and a not so
bright flashlight that is IN YOUR
FACE. The not so bright light
appears brighter. (apparent
magnitude)
To have an ABSOLUTELY fair
and accurate test of brightness,
you would need to put both flash
lights the SAME distance away
(absolute brightness)
22. What is the
Hertzsprung–
Russell diagram and
what does it tell
astronomers?
Hertzsprung-Russell (HR)
diagram A diagram in
which the luminosities
(brightness)of stars are
plotted against their
colors or spectral types.
Stars do not occupy all
regions of the H-R
diagram but form various
sequences, the most
important being the main
sequence, the giant
branch and the
horizontal branch. IN
other words it tells you
what kind of star you are
looking at, how hot it is
and how bright it is.
23. What is the difference between a rotation and a
revolution when talking about a planet?
ROTATION- spin on axis = day
REVOLUTION- trip around a star(sun) or planet=
year
http://www.physicalgeography.net/fundamentals/6hrevolution.html http://www.google.com/imgres?q=revolution+astronomy&hl=en&safe=active&sa=X&rls=com.microsoft:en-us:IE-SearchBox&biw=1280&bih=820&tbm=isch&prmd=imvns&tbnid=rOaHF70s7214sM:&imgrefurl=http://www.mrcrandall.com/terms/revolve.htm&docid=5otqT4vHE1oRM&imgurl=http://www.mrcrandall.com/terms/revolve_files/image003.png&w=727&h=222&ei=C9uCT9z3LMyEtgec0MWXBg&zoom=1&iact=hc&vpx=618&vpy=185&dur=3453&hovh=124&hovw=407&tx=201&ty=95&sig=114896936411332690632&page=1&tbnh=57&tbnw=186&start=0&ndsp=25&ved=1t:429,r:3,s:0,i:75
24. Define geocentric. Is this correct?
EARTH = center of solar system/universe. This is
NOT TRUE! It was an early attempt to explain how
the stars and planets moved.
WRONG!
FAIL!!!
25. What causes seasons on Earth?
AXIAL TILT and REVOLUTION around sun.
We now know that Earth orbits the sun elliptically and, at the same
time, spins on an axis that is tilted relative to its plane of orbit. This
means that different hemispheres are exposed to different amounts of
sunlight throughout the year. Because the sun is our source of light,
energy and heat, the changing intensity and concentration of its rays
give rise to the seasons of winter, spring, summer and fall.
http://www.msnbc.msn.com/id/3077384
Click here for short video on seasons
26. Define Heliocentric. Is this correct?
SUN= center of solar system. Ding ding! CORRECT!
Helios=sun Centric= centered
27. Draw a neap tide. (include the earth, moon, sun, and
tide)
http://changinautical.blogspot.com/2010/08/spring-and-neap-tides.html
LOOK how the sun, earth, and moons form a 90 degree angle during a NEAP
TIDE
http://changinautical.blogspot.com/2010/08/spring-and-neap-tides.html
28. Each galaxy contains (general number) of stars.
B B B BILLIONS! Wow! That is a LOT! And
remember there are B B B Billions of Galaxies
and EACH one has BILLIONS of stars.
Click for AWESOME Animaniacs Universe so
29. Test answers TEACHERS ONLY
Click link above for answer key
Click link above for answer key
(do
30. What are the main Parts of an experiment?
Independent Variable
This is the part of your experiment that you will test
(change) to answer your hypothesis. In the example above,
the independent variable would be the different colors of
the light bulbs. A GOOD experiment should have only
ONE VARIABLE.
Dependent Variable
This is what occurs in response to the changing
independent variable. In our example the Dependent
Variable is how much the grass seeds grow.
Control
The control should be the part of the experiment where
you do not include the Independent Variable. In our
example, grass seed that is growing under the white
(uncolored) bulb would be your control. The control lets
you compare your results in the experiment.
http://www.sciencebob.com/sciencefair/scientificmethod.php
31. What are the 3 MAIN states of matter?
Solid- TIGHTLY PACKED SLOW MOVING. DEFINITE
SHAPE DEFINITE VOLUME
Liquid- Move more quickly with more space than a
solid. No definite shape, DEFINITE volume.
GAS- Fast moving lots of space between atoms. NO
definite shape, NO definite volume.
32. What THREE parts make up an
atom? What are their charges?
Proton= +
Neutron= no
charge
Electron= - charge
33. How are elements grouped in the
periodic table of elements?
http://en.wikipedia.org/wiki/Periodic_table
The periodic table is a tabular display of the
chemical elements, organized on the basis of their
properties. Elements are presented in increasing
atomic number. While rectangular in general outline, gaps
are included in the rows or periods to keep elements with
similar properties together, such as the halogens and the
noble gases, in columns or groups, forming distinct
rectangular areas or blocks.
Click here for short video on the periodic
table
34. Define atomic number.
The atomic number is equal to the number of
protons in an atom's nucleus. The atomic number
determines which element an atom is. For example,
any atom that contains exactly 47 protons in its
nucleus is an atom of silver.
http://education.jlab.org/glossary/atomicnumber.html
35. What is a MIXTURE?
TWO or more substances not chemically bonded. Think
Chex MIX (I don’t like the burnt toast thingys, so I take
them out!)
Mixtures can be either homogeneous or heterogeneous. A
homogeneous mixture is a type of mixture in which the
composition is uniform(SAME). A heterogeneous mixture is a
type of mixture in which the components can easily be identified,
as there are two or more phases present. Air is a homogeneous
mixture of the gaseous substances nitrogen, oxygen, and smaller
amounts of other substances. Salt, sugar, and many other
substances dissolve in water to form homogeneous mixtures. A
homogeneous mixture in which there is both a solute and solvent
present is also a solution.
http://en.wikipedia.org/wiki/Mixture
36. What is the Law of Conservation of Mass?
The Law of Conservation of Mass dates
from Antoine Lavoisier's 1789
discovery that mass is neither
created nor destroyed in chemical
reactions. In other words, the mass
of any one element at the
beginning of a reaction will equal
the mass of that element at the end
of the reaction. If we account for all
reactants and products in a chemical
reaction, the total mass will be the
same at any point in time in any
closed system. Lavoisier's finding laid
the foundation for modern chemistry
and revolutionized science.
http://www.nature.com/scitable/knowledge/library/the-conservation-of-mass-17395478
http://www.rjdposters.com/Store/DrawProducts.aspx?
Action=GetDetails&ProductID=621&ParentID=&PageID=75
37. What is a chemical change?
A chemical change
makes a substance
that wasn't there
before. There may be
clues that a chemical
reaction took place,
such as light, heat,
color change, gas
production, odor, or
sound.
http://chemistry.about.com/od/lecturenotesl3/a/chemphyschanges.htm
38. How does a living system (like a pond) follow the law
of conservation of mass?
Ecosystems can be thought of as a battleground for
elements, in which species that are more efficient
competitors can often exclude inferior competitors.
Though most ecosystems contain so many individual
reactions, it would be impossible to identify them all, each of
these reactions must obey the Law of Conservation of
Mass — the entire ecosystem must also follow this same
constraint. Though no real ecosystem is a truly closed
system, we use the same conservation law by accounting
for all inputs and all outputs….When a forest is cut (and
especially if trees are burned to clear land for
agriculture), this stored carbon reenters the atmosphere
as CO2. Mass balance ensures that the carbon formerly locked
up in biomass must go somewhere; it must reenter some
other compartment of some ecosystem. Mass balance
properties can be applied over many scales of organization,
including the individual organism, the watershed, or even a
whole city http://www.nature.com/scitable/knowledge/library/the-conservation-of-mass-17395478
SHORT STORY: Critters are
born, critters die, critters eat,
critters are eaten. There will
be a natural balance that keeps
predators and prey balanced
and the pond healthy.
39. Give an example of the effect of
temperature for a solid dissolving into a
liquid.
Solid into liquid: like
sugar into iced tea.
Hotter temp= more
solubility
40. Give an example of the effect of temp for a
gas dissolving into a liquid.
Gas into liquid: bubbles in soda and O2 in live
bait bucket
COLDER temp = more solubility warm soda=flat
soda warm bait bucket=dead bait
42. What is the pH scale? What do the numbers mean?
The pH scale measures how acidic or basic a substance is. The
pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than
7 is acidic. A pH greater than 7 is basic.
The pH scale is logarithmic and as a result, each whole pH value below 7 is ten times more acidic than the next
higher value. For example, pH 4 is ten times more acidic than pH 5 and 100 times (10 times 10) more acidic than
pH 6. The same holds true for pH values above 7, each of which is ten times more alkaline (another way to say
basic) than the next lower whole value. For example, pH 10 is ten times more alkaline than pH 9 and 100 times
(10 times 10) more alkaline than pH 8.
Pure water is neutral. But when chemicals are mixed with water, the mixture can become either acidic or basic.
Examples of acidic substances are vinegar and lemon juice. Lye, milk of magnesia, and ammonia are examples of
basic substances.
http://www.elmhurst.edu/~chm/vchembook/184ph.html