Comets and asteroids are remnants from the formation of the solar system. Comets originate from the Kuiper Belt and Oort Cloud and are icy bodies, while asteroids originate from the Main Asteroid Belt and are rocky fragments. Both have irregular shapes and sizes ranging from 1-100 km. Comets have highly elliptical orbits with periods of 75 years to millions of years, while asteroids have more rounded orbits with periods of 1-100 years. When a meteoroid from space enters the atmosphere, it becomes a meteor or "shooting star"; any fragments that reach the ground are called meteorites.
Sound is produced when a matter vibrates. Sounds consists waves and these waves travel as a longitudinal waves. Sound travels fastest in solids because the particles are closer. The speed of sound depends on the temperature of matter. The higher the temperature, the higher the speed of sound is. The properties of sound are reflection and refraction. In reflection, the sound wave turns back when it hits a barrier. A good example of this are echoes and reverberations. On the other hand, refraction is the bending of sound waves.
What is Earth and space science about?
Earth and space science (ESS) connects systems
Earth and space science explores the interconnections between the land, ocean, atmosphere, and life of our planet. These include the cycles of water, carbon, rock, and other materials that continuously shape, influence, and sustain Earth and its inhabitants.
ESS also explores the cyclical interactions between the Earth system and the Sun and Moon.
ESS explores how New Zealand has been shaped by its location
New Zealand straddles the boundary between two major tectonic plates. ESS scientists – and students who study ESS – investigate how this precarious location has impacted (and continues to impact) on New Zealand’s geology and landforms, sometimes in dramatic ways.
ESS investigates the major ocean currents that flow past New Zealand and the impact these and other factors have on our weather and climate.
ESS explores the solar system and beyond
Planet Earth is dynamically linked with the solar system and the wider universe. ESS investigates the structure and composition of these systems and develops understanding of the vast distances and times involved.
What is the Nature of Science strand about?
Why study Earth and space science?
Key concepts: Earth and space science
What is biology | physics | chemistry about?
Interpreting the Nature of Science in an ESS context
Understanding about science
Students learn how understanding of the Earth system, the solar system, the universe, and the interactions between them has developed over time. For example, how:
Wegener and other scientists came to understand that the surface of the earth is broken into tectonic plates that move and interact at their boundaries
Pluto was discovered in 1930 because of disturbances in the orbits of Uranus and Neptune and became the ninth planet, only to be declared a dwarf planet in 2006 after the discovery of Kuiper Belt objects of similar sizes
technologies such as space telescopes and probes have facilitated a build-up of knowledge and understanding about planets, moons, and the rest of the universe
attempts by humans to travel in space have been influenced by the politics of the day
satellites that can measure such factors as the temperature of the surface of the ocean make it possible to build computer models that can be used to accurately monitor changes in the Earth system
the cumulative work of many scientific teams has led to such breakthroughs as understanding the mechanisms of climate change and ocean acidification.
Investigating in science
Students investigate aspects of the Earth system, the solar system and the universe. For example:
Investigating the exchange of carbon dioxide between the ocean and atmosphere by undertaking practical investigations and processing and interpreting secondary data.
Investigating the Sun, Moon and Earth cycles by exploring and developing different models.
useful student materials reference for basic education. Asteroids, comets, and meteors are chunks of rock, ice, and metal left over from the formation of our solar system 4.6 billion years ago. They are a lot like a fossil record of our early solar system. There are about 1.3 million known asteroids, and more than 3,800 known comets. If we take a complete inventory of the entire contents of the Solar System, we find that there are many small, rocky bodies ranging in size from similar to grains of sand up to the size of small moons or comets. The smallest rocky objects that are found in space are referred to as meteoroids. There are three different classifications of meteoroids, depending on how they are observed:
Meteoroid: A chunk of rock orbiting the Sun inside the Solar System.
Meteor: When a meteoroid encounters the Earth's atmosphere, it interacts with the gases in the atmosphere and all or most of it gets vaporized. The streak of light that we see as the rock penetrates the atmosphere is called a meteor, which many people refer to as "a shooting star."
Meteorite: If some of the material that makes up a meteoroid survives the trip through the atmosphere and is found on Earth, we refer to the remnant as a meteorite. If you want help identifying candidate meteorites you can see the following page:
University of New Mexico: How to Identify a Meteorite(link is external)
There are many meteorites that have been recovered on Earth. We find that there are several types of meteorites that can be separated based on their composition. Some meteorites are almost entirely made up of iron and nickel. These chunks of metal are very easy to find when they land on the Earth because they are so dense and are essentially chunks of metal. There are also stone and stony-iron mix meteorites that land on the Earth (these are more common), but since they appear to the untrained eye more like the naturally occurring rocks on the Earth, without extensive testing they are more difficult to identify as meteorites. During its mission, the Mars Rover Opportunity discovered an iron meteorite on Mars. It just happened to be lying on the planet's surface right near where the Rover's heat shield landed after the spacecraft jettisoned it. This is an iron meteorite, making it stand out among the other rocks the Rover has studied intensively during its trip around the surface of Mars.
Sound is produced when a matter vibrates. Sounds consists waves and these waves travel as a longitudinal waves. Sound travels fastest in solids because the particles are closer. The speed of sound depends on the temperature of matter. The higher the temperature, the higher the speed of sound is. The properties of sound are reflection and refraction. In reflection, the sound wave turns back when it hits a barrier. A good example of this are echoes and reverberations. On the other hand, refraction is the bending of sound waves.
What is Earth and space science about?
Earth and space science (ESS) connects systems
Earth and space science explores the interconnections between the land, ocean, atmosphere, and life of our planet. These include the cycles of water, carbon, rock, and other materials that continuously shape, influence, and sustain Earth and its inhabitants.
ESS also explores the cyclical interactions between the Earth system and the Sun and Moon.
ESS explores how New Zealand has been shaped by its location
New Zealand straddles the boundary between two major tectonic plates. ESS scientists – and students who study ESS – investigate how this precarious location has impacted (and continues to impact) on New Zealand’s geology and landforms, sometimes in dramatic ways.
ESS investigates the major ocean currents that flow past New Zealand and the impact these and other factors have on our weather and climate.
ESS explores the solar system and beyond
Planet Earth is dynamically linked with the solar system and the wider universe. ESS investigates the structure and composition of these systems and develops understanding of the vast distances and times involved.
What is the Nature of Science strand about?
Why study Earth and space science?
Key concepts: Earth and space science
What is biology | physics | chemistry about?
Interpreting the Nature of Science in an ESS context
Understanding about science
Students learn how understanding of the Earth system, the solar system, the universe, and the interactions between them has developed over time. For example, how:
Wegener and other scientists came to understand that the surface of the earth is broken into tectonic plates that move and interact at their boundaries
Pluto was discovered in 1930 because of disturbances in the orbits of Uranus and Neptune and became the ninth planet, only to be declared a dwarf planet in 2006 after the discovery of Kuiper Belt objects of similar sizes
technologies such as space telescopes and probes have facilitated a build-up of knowledge and understanding about planets, moons, and the rest of the universe
attempts by humans to travel in space have been influenced by the politics of the day
satellites that can measure such factors as the temperature of the surface of the ocean make it possible to build computer models that can be used to accurately monitor changes in the Earth system
the cumulative work of many scientific teams has led to such breakthroughs as understanding the mechanisms of climate change and ocean acidification.
Investigating in science
Students investigate aspects of the Earth system, the solar system and the universe. For example:
Investigating the exchange of carbon dioxide between the ocean and atmosphere by undertaking practical investigations and processing and interpreting secondary data.
Investigating the Sun, Moon and Earth cycles by exploring and developing different models.
useful student materials reference for basic education. Asteroids, comets, and meteors are chunks of rock, ice, and metal left over from the formation of our solar system 4.6 billion years ago. They are a lot like a fossil record of our early solar system. There are about 1.3 million known asteroids, and more than 3,800 known comets. If we take a complete inventory of the entire contents of the Solar System, we find that there are many small, rocky bodies ranging in size from similar to grains of sand up to the size of small moons or comets. The smallest rocky objects that are found in space are referred to as meteoroids. There are three different classifications of meteoroids, depending on how they are observed:
Meteoroid: A chunk of rock orbiting the Sun inside the Solar System.
Meteor: When a meteoroid encounters the Earth's atmosphere, it interacts with the gases in the atmosphere and all or most of it gets vaporized. The streak of light that we see as the rock penetrates the atmosphere is called a meteor, which many people refer to as "a shooting star."
Meteorite: If some of the material that makes up a meteoroid survives the trip through the atmosphere and is found on Earth, we refer to the remnant as a meteorite. If you want help identifying candidate meteorites you can see the following page:
University of New Mexico: How to Identify a Meteorite(link is external)
There are many meteorites that have been recovered on Earth. We find that there are several types of meteorites that can be separated based on their composition. Some meteorites are almost entirely made up of iron and nickel. These chunks of metal are very easy to find when they land on the Earth because they are so dense and are essentially chunks of metal. There are also stone and stony-iron mix meteorites that land on the Earth (these are more common), but since they appear to the untrained eye more like the naturally occurring rocks on the Earth, without extensive testing they are more difficult to identify as meteorites. During its mission, the Mars Rover Opportunity discovered an iron meteorite on Mars. It just happened to be lying on the planet's surface right near where the Rover's heat shield landed after the spacecraft jettisoned it. This is an iron meteorite, making it stand out among the other rocks the Rover has studied intensively during its trip around the surface of Mars.
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
3. COMETS AND ASTEROIDS
• Comets and asteroids are referred to by
astronomers as Near-Earth Objects (NEO).
• Comets are icy bodies or objects while
asteroids are rocky fragments.
• Comets and asteroids are remnants from the
formation of our solar system 4.6 billion years
ago.
4. Comparison of some characteristics of
comets and asteroids
Characteristics Comet Asteroid
Origin Kuiper Belt and Oort Cloud Main Asteroid Belt
Shape Varied/Irregular Varied/Irregular
Size range of diameter
(kilometer)
1-10 (nucleus only) 1-100 ++
Chemical composition Ice (frozen water); frozen gases
(ammonia, methane, and carbon
dioxide); other organic compounds
(carbon-containing compounds)
Silicates (olivine and
pyroxene), iron, nickel
Orbit Highly elliptical More rounded
Orbital period (years) 75 to 100,000++ 1-100
5. COMETS AND ASTEROIDS
• Comets and asteroids have irregular shapes
and varied sizes. They both reflect light from
the sun at varying amounts depending on the
size and composition.
• Silicates are minerals which contain the minerals
that contain the elements silicon, oxygen, and at
least one metal which is responsible for comets
and asteroids to be able to reflect light.
6. COMETS AND ASTEROIDS
• Comet and asteroid both orbit the Sun
• Comets usually come from the Oort Cloud
which is beyond our Solar System, and a few
from Kuiper Belt which is just beyond
Neptune’s orbit.
• Long-period comets come from the Oort
cloud, while short-period comets come from
Kuiper Belt.
7. Halley’s Comet
• The most famous comet of the 20th century.
• Only known short-period comet
• It takes 75-79 years for Comet Halley to orbit
the Sun
*Long-period comets take 200 to hundred millions of
years to complete their orbit around the Sun.
8. Asteroi
ds
• Asteroids originate from the Main Asteroid
Belt between Mars and Jupiter.
• This belt is theorized by scientists to be
remnants of a planet that did not completely
form.
9. Asteroi
ds
• The orbit of an asteroid is more rounded and
less elliptical than the orbit of a comet.
• The asteroid Ceres was discovered in 1801
by Guiseppe Piazzi; it is the largest asteroid.
10. Asteroi
ds
• Asteroids are made of rocks, ice, carbon,
silica and different metals.
• Asteroids are also called minor planets or
planetoids.
11. COMETS
• Comets come from regions of space very
far from the heat and radiaton of the sun.
• Comets are made of frozen matter while
asteroids are rocky fragments.
13. COMETS
• Comets are actually dark and invisible. When
a comet is near the sun, it becomes visible
because tails are formed
• When a comet is approaching the sun, its ion
tail is behind it but when it is moving away
from the sun, its ion tail goes ahead of it.
16. Metoroid/Meteor/Meteorite
• A meteoroid usually all burns up
when it enters Earth’s atmosphere.
• A meteor is a light phenomenon or a
streak of light that occurs when a
meteoroid burns up as it enters the
Earth’s atmosphere.
• When a fragment from the
meteoroid survives and makes it to
the ground, this space rock fragment
is now called a meteorite.
17. Metoroid/Meteor/Meteorite
• A meteor shower is a light
phenomenon caused by
fragments left by a comet
as they orbit the sun.
When the earth orbits the
sun and passes through
the comet fragments, a
streak of light is produced.
18. TYPES OF METEORITES:
Stony Meteorite
Stony meteorites, the
most common type of
meteorite, are generally
composed of approximately
75 – 90% silicon-based
minerals, 10 – 25% nickel-iron
alloy, and trace amounts of
iron sulfide.
19. TYPES OF METEORITES:
Stony-iron meteorite
Stony-iron meteorites contain
approximately even amounts of silicates
and nickel-iron alloy
20. TYPES OF METEORITES:
Iron meteorite
Most iron meteorites
likely originated in the cores of
large asteroids, and are
composed almost entirely of
nickel-iron alloy, which is also
a primary component of the
Earth's core.