Questions For Topic 3 Half Astronomy
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This document contains 25 questions related to topics in astronomy and Earth science. The questions cover definitions of key terms, explanations of major theories like the Big Bang Theory, characteristics of celestial objects like stars and galaxies, and relationships between various properties of stars and galaxies. They also include questions testing knowledge of the Earth's structure and latitude and longitude.
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Materials Required· Computer and internet access· Textbook·
Materials Required
· Computer and internet access
· Textbook
· Scientific calculator
· Spreadsheet software like Excel
· Digital camera
· Printer or drawing software
· Save this worksheet and use it as your report template
Time Required: Between 3-3.5 hours, note that depending if you use Excel (or similar), your time will be shortened.
Introduction
Figure 1: JP Stellar Revolution
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Figure 2: https://imagine.gsfc.nasa.gov/
For this lab we will focus on stars similar to our own Sun (up to 1.4MassSun ), main sequence stars. A star that is similar in size to our Sun will take approximately 50 million years to mature from the beginning of their collapse to becoming an “adult” star. Our Sun, after reaching this mature phase, will stay on the main sequence of the HR-diagram for approximately 10 billion years (Fig. 2). Stars like our Sun are fueled by the nuclear fusion of hydrogen forming into helium at their cores. It is this outflow of energy that provides the outward pressure necessary to keep the star from collapsing under its own weight. And in turn, this energy determines the luminosity of the stars.
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Figure 3. NGC 6543
When a low mass star like our Sun has exhausted its supply of hydrogen in its core, then there will no longer be a source of heat to support the core against the pull of gravity. Hydrogen will continue to burn in a shell around the core and the star will evolve into the phase of a red giant, growing in diameter. The core of the star will collapse under the pull of gravity until it reaches a high enough density, and it will begin to burn helium and make carbon. This phase will last about 100 million years eventually exhausting the helium and then becoming a red supergiant, growing more in diameter. This is a more brief phase and last only a few tens of thousands of years and the star loses mass by expelling a strong wind. The star eventually loses the mass in its envelope, leav ...
Materials Required· Computer and internet access· Textbook·
Materials Required
· Computer and internet access
· Textbook
· Scientific calculator
· Spreadsheet software like Excel
· Digital camera
· Printer or drawing software
· Save this worksheet and use it as your report template
Time Required: Between 3-3.5 hours, note that depending if you use Excel (or similar), your time will be shortened.
Introduction
Figure 1: JP Stellar Revolution
The life cycle of the stars is one of the most fascinating studies of astronomy.Stars are the building blocks of galaxies and by looking at their age, composition and distribution we can learn a great deal about the dynamics and evolution of that galaxy. Stars manufacture the heavier elements including carbon, nitrogen and oxygen which in turn will determine the characteristics of the planetary systems that form around them. It is the mass of the star which will determine its life cycle and this all depends on the amount of matter that is available in its nebula. Each star will begin with a limited amount of hydrogen in their cores. This lifespan is proportional to (f M) / (L), where f is the fraction of the total mass of the star, M, available for nuclear burning in the core and L is the average luminosity of the star during its main sequence lifetime. The larger the mass, the shorter the lifespan ending in a beautiful supernova, the smaller the mass, the longer the lifespan ending as a quiet brown dwarf (Fig. 1).
Main Sequence Stars
Figure 2: https://imagine.gsfc.nasa.gov/
For this lab we will focus on stars similar to our own Sun (up to 1.4MassSun ), main sequence stars. A star that is similar in size to our Sun will take approximately 50 million years to mature from the beginning of their collapse to becoming an “adult” star. Our Sun, after reaching this mature phase, will stay on the main sequence of the HR-diagram for approximately 10 billion years (Fig. 2). Stars like our Sun are fueled by the nuclear fusion of hydrogen forming into helium at their cores. It is this outflow of energy that provides the outward pressure necessary to keep the star from collapsing under its own weight. And in turn, this energy determines the luminosity of the stars.
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Figure 3. NGC 6543
When a low mass star like our Sun has exhausted its supply of hydrogen in its core, then there will no longer be a source of heat to support the core against the pull of gravity. Hydrogen will continue to burn in a shell around the core and the star will evolve into the phase of a red giant, growing in diameter. The core of the star will collapse under the pull of gravity until it reaches a high enough density, and it will begin to burn helium and make carbon. This phase will last about 100 million years eventually exhausting the helium and then becoming a red supergiant, growing more in diameter. This is a more brief phase and last only a few tens of thousands of years and the star loses mass by expelling a strong wind. The star eventually loses the mass in its envelope, leav ...
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hghdcigsdiucsdiucsdcijsdbcksjcnsdkjcbsdkbxsjkbsdjcbsdjcbdcbdcjsdbcjdbcdcbkjcbsdkcbdkjcdkjcdcjkdnjkcdncdjkcndkjcndkjcnsdlclnsdlcsdncsdnckdncdcndjkcndkjcndkjcnsdkjcnsdkcnskcnskjcdsjkcdjkcdkjcdkjcdjkcdjkjcdkjcfjkjcfkjcfkcdfbjkcbnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
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Similar to Questions For Topic 3 Half Astronomy
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- The document is a student's chemistry project on space chemistry. It thanks the teacher and school for allowing the project and providing resources.
- The project covers topics like the chemical composition of space, how space suits work, rocket propellants, and harnessing energy from space. It includes sections on stars and their properties, the life and death of stars, and references.
Materials Required· Computer and internet access· Textbook·
Materials Required
· Computer and internet access
· Textbook
· Scientific calculator
· Spreadsheet software like Excel
· Digital camera
· Printer or drawing software
· Save this worksheet and use it as your report template
Time Required: Between 3-3.5 hours, note that depending if you use Excel (or similar), your time will be shortened.
Introduction
Figure 1: JP Stellar Revolution
The life cycle of the stars is one of the most fascinating studies of astronomy.Stars are the building blocks of galaxies and by looking at their age, composition and distribution we can learn a great deal about the dynamics and evolution of that galaxy. Stars manufacture the heavier elements including carbon, nitrogen and oxygen which in turn will determine the characteristics of the planetary systems that form around them. It is the mass of the star which will determine its life cycle and this all depends on the amount of matter that is available in its nebula. Each star will begin with a limited amount of hydrogen in their cores. This lifespan is proportional to (f M) / (L), where f is the fraction of the total mass of the star, M, available for nuclear burning in the core and L is the average luminosity of the star during its main sequence lifetime. The larger the mass, the shorter the lifespan ending in a beautiful supernova, the smaller the mass, the longer the lifespan ending as a quiet brown dwarf (Fig. 1).
Main Sequence Stars
Figure 2: https://imagine.gsfc.nasa.gov/
For this lab we will focus on stars similar to our own Sun (up to 1.4MassSun ), main sequence stars. A star that is similar in size to our Sun will take approximately 50 million years to mature from the beginning of their collapse to becoming an “adult” star. Our Sun, after reaching this mature phase, will stay on the main sequence of the HR-diagram for approximately 10 billion years (Fig. 2). Stars like our Sun are fueled by the nuclear fusion of hydrogen forming into helium at their cores. It is this outflow of energy that provides the outward pressure necessary to keep the star from collapsing under its own weight. And in turn, this energy determines the luminosity of the stars.
Death of Our Sun
Figure 3. NGC 6543
When a low mass star like our Sun has exhausted its supply of hydrogen in its core, then there will no longer be a source of heat to support the core against the pull of gravity. Hydrogen will continue to burn in a shell around the core and the star will evolve into the phase of a red giant, growing in diameter. The core of the star will collapse under the pull of gravity until it reaches a high enough density, and it will begin to burn helium and make carbon. This phase will last about 100 million years eventually exhausting the helium and then becoming a red supergiant, growing more in diameter. This is a more brief phase and last only a few tens of thousands of years and the star loses mass by expelling a strong wind. The star eventually loses the mass in its envelope, leav ...
Materials Required· Computer and internet access· Textbook·
Materials Required
· Computer and internet access
· Textbook
· Scientific calculator
· Spreadsheet software like Excel
· Digital camera
· Printer or drawing software
· Save this worksheet and use it as your report template
Time Required: Between 3-3.5 hours, note that depending if you use Excel (or similar), your time will be shortened.
Introduction
Figure 1: JP Stellar Revolution
The life cycle of the stars is one of the most fascinating studies of astronomy.Stars are the building blocks of galaxies and by looking at their age, composition and distribution we can learn a great deal about the dynamics and evolution of that galaxy. Stars manufacture the heavier elements including carbon, nitrogen and oxygen which in turn will determine the characteristics of the planetary systems that form around them. It is the mass of the star which will determine its life cycle and this all depends on the amount of matter that is available in its nebula. Each star will begin with a limited amount of hydrogen in their cores. This lifespan is proportional to (f M) / (L), where f is the fraction of the total mass of the star, M, available for nuclear burning in the core and L is the average luminosity of the star during its main sequence lifetime. The larger the mass, the shorter the lifespan ending in a beautiful supernova, the smaller the mass, the longer the lifespan ending as a quiet brown dwarf (Fig. 1).
Main Sequence Stars
Figure 2: https://imagine.gsfc.nasa.gov/
For this lab we will focus on stars similar to our own Sun (up to 1.4MassSun ), main sequence stars. A star that is similar in size to our Sun will take approximately 50 million years to mature from the beginning of their collapse to becoming an “adult” star. Our Sun, after reaching this mature phase, will stay on the main sequence of the HR-diagram for approximately 10 billion years (Fig. 2). Stars like our Sun are fueled by the nuclear fusion of hydrogen forming into helium at their cores. It is this outflow of energy that provides the outward pressure necessary to keep the star from collapsing under its own weight. And in turn, this energy determines the luminosity of the stars.
Death of Our Sun
Figure 3. NGC 6543
When a low mass star like our Sun has exhausted its supply of hydrogen in its core, then there will no longer be a source of heat to support the core against the pull of gravity. Hydrogen will continue to burn in a shell around the core and the star will evolve into the phase of a red giant, growing in diameter. The core of the star will collapse under the pull of gravity until it reaches a high enough density, and it will begin to burn helium and make carbon. This phase will last about 100 million years eventually exhausting the helium and then becoming a red supergiant, growing more in diameter. This is a more brief phase and last only a few tens of thousands of years and the star loses mass by expelling a strong wind. The star eventually loses the mass in its envelope, leav ...
I.A Universe and Solar system
The document summarizes the origin and structure of the Earth and solar system. It describes theories for the formation of the universe like the Big Bang theory and theories for the formation of the solar system. It then describes the structure and components of the solar system including the inner terrestrial planets like Earth and Mars, outer gas giants like Jupiter and Saturn, and other minor objects like asteroids, comets, and meteorites. It provides details on the composition, atmospheres, moons, and other features of each planet and minor solar system member.
stars.pptx
The document provides information about stars and constellations, including defining what a star is, explaining the brightness and temperature of stars, and how stars are grouped into constellations. Key details covered include the two characteristics that define brightness, the relationship between surface temperature and color, different sizes and masses of stars, and how stars are born from nebulae. The document aims to teach readers about various properties and life cycles of stars.
Ast Ch 05 Ques Ver 02
1. Stellar evolution describes how stars change over their lifetime. Stars are born from clouds of gas and dust in space, like the Orion Nebula.
2. Young stars called protostars form at the centers of gas clouds through gravitational collapse. Stars spend most of their lives fusing hydrogen into helium in their cores through nuclear fusion, staying in hydrostatic equilibrium.
3. Massive stars over 8 solar masses die dramatically in supernova explosions, forging heavy elements. Less massive stars end as white dwarfs or neutron stars.
Habitable Zones
This document summarizes research on the habitable zones around stars and the habitability of exoplanets. It discusses how the habitable zone is defined as the region where liquid water could exist on a planet's surface. The inner and outer edges of the habitable zone are modeled based on factors like the runaway greenhouse effect and CO2 condensation limits. Current exoplanet detection methods are also overviewed. While over 20 potentially habitable exoplanets have been identified, confirming life remains difficult due to natural phenomena creating false biosignatures. However, an inhabited exoplanet may be confirmed in the near future as detection capabilities continue advancing rapidly.
Earth Science 1
The protoplanet hypothesis proposes that:
1) A rotating cloud of gas and dust collapsed due to gravity and explosions from nearby stars.
2) Most material collected in the center to form the sun, while other masses condensed into protoplanets like Earth.
3) Earth's oceans formed as its iron core melted other materials, releasing water and gases through volcanic eruptions. Earth's atmosphere similarly developed from gases released through early volcanism and oxygen added later by photosynthesizing plants.
Q3 G11 Physical Science Module 1.pdf
The document discusses the formation and evolution of stars, noting that stars form from the gravitational collapse of clouds of dust and gas in space. It explains that stars initially fuse hydrogen into helium through nuclear fusion, then heavier elements are formed through fusion as the star ages and grows hotter. The document also outlines the different stages of a star's life from main sequence to red giant to supernova.
POWERPOINT ABOUT ECLIPSES SOLAR AND LUNAR ECLIPSES
This document provides information about a science class for grade 7 students. It includes an introduction welcoming students to science class and reviewing seasons. There will be a shadow demonstration activity where students guess images from shadows. Students will then participate in an activity in groups to simulate shadows and answer questions about how shadows are formed in space. The document concludes with announcing upcoming science contests and activities in the science laboratory for January and February.
Physics Powerpoint
The document discusses several topics in physics including:
1) The stars of the Big Dipper constellation and their properties such as temperature, distance, and luminosity.
2) Einstein's mass-energy equivalence equation E=mc2 and what it means that mass and energy are different forms of the same thing.
3) The twin paradox thought experiment and how the resolution is that one twin undergoing acceleration causes them to experience different frames of reference and amounts of aging.
4) Factors that could explain Fermi's paradox such as life being unsuitable for Earth conditions or advanced civilizations not existing yet.
Class%20presentation.ppt
The document discusses several topics related to planetary formation and astronomy. It describes the proto-planet hypothesis which proposes that proto-planets formed from solar nebulae and broke into smaller concentrations. It also discusses the giant impact theory of lunar formation, which is currently the most widely accepted explanation that the Moon formed from a collision between Earth and a Mars-sized object. Additionally, it provides overviews of the Big Bang theory, cosmic microwave background radiation, redshift, black holes, and Kepler's laws of planetary motion.
Formation of Light Elements.
1. The document summarizes the key stages of the Big Bang theory, including the formation of the early light elements hydrogen and helium.
2. It describes how in the early universe, matter and antimatter annihilated each other, leaving an excess of matter. Nuclear fusion then formed the first atomic nuclei like deuterium and helium-3.
3. Eventually, hydrogen and helium nuclei combined to form the first stable atomic element, helium-4, accounting for about 25% of the elemental abundance we observe today.
1. universe, planets and solar system.pptx
hghdcigsdiucsdiucsdcijsdbcksjcnsdkjcbsdkbxsjkbsdjcbsdjcbdcbdcjsdbcjdbcdcbkjcbsdkcbdkjcdkjcdcjkdnjkcdncdjkcndkjcndkjcnsdlclnsdlcsdncsdnckdncdcndjkcndkjcndkjcnsdkjcnsdkcnskcnskjcdsjkcdjkcdkjcdkjcdjkcdjkjcdkjcfjkjcfkjcfkcdfbjkcbnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
Life Cycle Of A Star
The document discusses the life cycle of stars from their birth in nebulae to their death. Stars are born when gas and dust clouds collapse under gravity and heat up. During their main sequence phase, stars fuse hydrogen into helium in their cores. Later, larger stars become red giants or supergiants as their cores shrink and outer layers expand. Eventually, stars die and eject their outer layers, leaving behind dense remnants like white dwarfs, neutron stars, or black holes.
Life Cycle of Stars Stations
The document provides background information on stars' life cycles and how they are determined by mass. It states that stars with greater mass will have shorter life cycles as they must burn hot and fast to maintain equilibrium, using up fuel quickly and dying young in traumatic explosions. Average stars will live longer, peaceful deaths. It then lists directions for an activity involving classifying stars on the Hertzsprung-Russell diagram and answering conclusion questions.
THE UNIVERSE
The universe is composed of ordinary visible matter (4%), dark matter (21%), and dark energy (75%). Dark matter's existence was postulated to explain gravitational forces, while dark energy causes the accelerated expansion of the universe. The Big Bang theory proposes that approximately 13.7 billion years ago, the universe began as a very dense, hot mass that exploded and expanded. Evidence for this includes the cosmic microwave background radiation and the formation of light elements. Galaxies formed over time and come in elliptical, spiral, and irregular shapes. Stars form from clouds of dust and gas through gravitational collapse and nuclear fusion.
Science-Stars and Galaxy
The document summarizes key information about stars and galaxies. It discusses the structure and characteristics of the Sun, including its atmosphere, temperature, and core. It describes phenomena on the Sun's surface like prominences, solar flares, and sunspots. Stars are formed from the collapse of nebulae under gravity and generate energy through nuclear fusion. There are different types of stars categorized by size, temperature, and other properties. Galaxies are groups of millions or billions of stars held together by gravity, and come in spiral, elliptical, or irregular shapes. The Milky Way galaxy contains our solar system.
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Materials Required· Computer and internet access· Textbook·
Materials Required· Computer and internet access· Textbook·
Materials Required· Computer and internet access· Textbook·
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Las oraciones con los verbos reflexivos copy
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Tarea
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English thisis
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Gh reminders
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Page 3
Cities in ancient Egypt were important centers of culture, religion, and politics. Thebes contained many important temples and was known as the burial place for pharaohs and other important figures. The Sphinx of Giza symbolized strength and its features have eroded over time. Several pyramids around Giza, including those of Menkaura and Khafre, had unique features like partial granite construction and were started but not completed until after the pharaoh's reign. Early cities like El-Omari and Saqqara featured housing structures made from reeds and pits for burial, and architecture evolved over time with pyramids transitioning from mud and wood to stone.
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Questions For Topic 3 Half Astronomy
- 1. -1 TOP 25 QUESTIONS RELATIVE TO TOPIC 3 1. Define observation, inference, mass, volume. *TOPIC 1 2. Define density formula-wise. *TOPIC 1 3. When objects are placed in water, why do some sink and others float? * TOPIC 2 4. Review HOW TO DENSITY problem protocol. Recite verbally. *TOPIC 2 5. Define celestial object and universe. Relate the two vocabulary terms. 6. Explain the Big Bang Theory in your own words. Refer to study sheet for details. 7. Give at least 2 examples of evidence for the Big Bang Theory. 8. Approximately how old is the universe and the solar system. 9. Where on the milky way galaxy is earth located (side view/other views) 10. Define nuclear fusion and what is it fueled with/by? 11. FILL IN THE BLANKS. Galaxies move ________ away/ closer. 12. What is a light year? 13. What does the life cycle of a star depend on? What is luminosity? 14. As luminosity _____________, temperature ___________. 15. Giant stars are _____________ in luminosity and ___________in temps. 16. Use your ESRT to determine luminosity and temperature about super giants. 17. Use your ESRT to determine the luminosity and temperature about white dwarfs. 18. What is an impact event? 19. TOMMORROW: define meteors and asteroids 20. What does the red shift mean? 21. The 0 degree line for latitude and longitude is…. 22. Name the four spheres of the earth. *TOPIC 1 23. In order of increasing density, based on the four spheres of the earth. *TOPIC 2 Think: Gas, Liquid, Solid, Part spheres 24. What is Polaris (think of the half-sphere-thing) and relate it to the horizon. *TOPIC 1 25. Use your ESRT to figure out what the formula of gradient is. *TOPIC 2