Origins of Our Solar System
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The solar system formed from a giant cloud of dust and gas called a nebula approximately 5 billion years ago. As the nebula collapsed due to gravity, the densest parts compressed at its center to form the proto-Sun, while the remaining material flattened into a disk that would eventually form the planets. Over millions of years, dust particles in the disk collided and stuck together, growing into ever larger bodies including planets that began to orbit the newborn Sun. The inner terrestrial planets closest to the Sun include Mercury, Venus, Earth, and Mars, while the outer gas giants are Jupiter, Saturn, Uranus, and Neptune. In a few billion years, the Sun will grow hotter and expand, likely consuming the inner planets
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The Solar System formed from a large rotating cloud of gas and dust called a solar nebula. As the nebula condensed due to gravity, a central mass became the Sun and the remaining material formed rings that eventually became the planets. The Sun consists of an inner core where nuclear fusion occurs and surrounding layers including the photosphere, chromosphere, and corona. The eight major planets can be divided into terrestrial and Jovian planets. Smaller bodies like asteroids and comets also orbit the Sun.
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Formation ofthe solar system notes
The formation of the solar system began from a large cloud of gas and dust called the solar nebula. As the nebula collapsed due to gravity, it formed a disc with the sun at the center. Planetesimals within the disc collided and accreted to form the planets. The nebular theory explained many characteristics of the solar system but did not account for all observations. The modern condensation theory expanded on this model and better explained features such as the asteroid belt and comets through processes like condensation and fractionation within the early solar system.
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Origins Of The Solar System
The solar system formed from a large cloud of dust and gas that collapsed under gravity around 4.6 billion years ago. As the cloud spun, it flattened into a disk with the sun at the center. Closer to the sun, the rocky, terrestrial planets Mercury, Venus, Earth, and Mars formed. Further from the sun, the larger gas giants Jupiter, Saturn, Uranus, and Neptune formed, along with the icy planet Pluto. The inner planets are smaller and denser, while the outer planets have thick atmospheres and are mostly made of gas.
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Stars form from clouds of dust and gas that collapse under their own gravity. As the cloud collapses, a hot protostar forms at the center. Nearby clouds may break into blobs, explaining why most stars exist in pairs or groups. Planets form from disks of dust and gas that surround young stars. As the disk spins, dust clumps stick together, growing into planetesimals that eventually collide and merge into planets. Moons can form alongside planets from leftover material, be captured asteroids, or form from debris after a large impact. Eventually the sun will run out of hydrogen fuel and expand into a red giant, likely consuming the inner planets before collapsing into a white dwarf.
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The sun is a star at the center of our solar system. About 5 billion years ago, a cloud of gas and dust collapsed under gravity and the sun formed at the center. Nuclear fusion in the sun's core produces immense heat and energy that radiates outward through convection currents. The sun has multiple layers including the photosphere, chromosphere, and corona, with temperatures ranging from 10,000 degrees F at the surface to over 15 million degrees F at the core. The sun is classified as a yellow dwarf star and is average compared to other stars.
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According to the nebular hypothesis:
- The Sun and planets formed from a giant cloud of dust and gas that collapsed due to some event around 4.57 billion years ago.
- As the cloud collapsed and began rotating faster, it flattened into a disk with the Sun forming at the center.
- The terrestrial planets like Earth formed closer to the Sun from metals and rocks, while the gas giants formed beyond the frost line where ices could also form, allowing them to grow larger.
- Leftover debris that did not form planets remains in regions like the Asteroid Belt and Kuiper Belt today.
Stars
Stars are spheres of gas held together by gravity. A star's life cycle depends on its mass, beginning as a nebula and ending as a white dwarf, neutron star, or black hole. Small red dwarf stars can last trillions of years while massive blue giants only last 10,000-100,000 years before exploding. Our Sun is a medium yellow star that will become a red giant and eventually a white dwarf. Constellations are patterns of stars used to identify positions in the sky.
The Sun.pdf
The Sun is the largest object in the solar system. It is a star at the center of our solar system composed primarily of hydrogen and helium. The Sun produces energy through nuclear fusion in its core, radiating this energy mainly as visible light and infrared radiation. It is about 330,000 times the size of Earth and supplies the majority of energy that drives Earth's climate and weather. In around 5 billion years, the Sun will run out of hydrogen fuel in its core and expand into a red giant star large enough to engulf planets like Mercury and Venus.
Earthand the solar system
The Big Bang generated a massive nebula of gases and dust that had a spinning motion and gravity. Dust particles in the nebula attracted each other to form denser matter, and collided at high speeds generating heat and forming the first stars, including our Sun, which is approximately 4.6 billion years old. Our solar system formed from the collapsing nebula and consists of the Sun and eight major planets, along with their natural satellites, asteroids, meteors, and comets.
Chapter 9 Stars and Galaxies
The document provides information about stars and galaxies. It begins by describing characteristics of the Sun such as its size, temperature, and composition. It then discusses the structure of the Sun and phenomena on its surface like sunspots, solar flares, and prominences. The effects of solar phenomena like solar wind on Earth are also outlined. The document concludes by describing galaxies like the Milky Way and theories about the formation, evolution and potential end of the Universe.
Beyond Earth
What's beyond earth in space? This presentation gives you some knowledge about the celestial objects beyond earth
07 stars, constellations, and asterisms
Stars form from clouds of gas and dust through gravitational collapse. They spend most of their existence fusing hydrogen into helium in their cores, until they run out of hydrogen fuel and their life cycles end. Smaller stars like our Sun will become red giants and white dwarfs, while larger stars over 10 solar masses will explode as supernovae, leaving behind neutron stars or black holes. Constellations are patterns of stars in the sky, while asterisms are smaller patterns within constellations like the Big Dipper in Ursa Major.
The sun (more advanced)
Maybe too in-depth for most elementary students, but very good broad coverage for teacher background or more advanced students in elementary or middle school.
Solar system pp
The document provides information about the solar system and beyond. It summarizes that the solar system consists of the Sun and objects that orbit it, including 8 planets. It is located within the Milky Way galaxy, which contains many stars, dust and gas. The document then provides details about the properties of objects in the solar system like planets, moons, asteroids and comets.
Earth in space
This chapter discusses the origin and evolution of the Earth and the solar system. It begins with an overview of the Big Bang theory for the origin of the universe and then describes the nebular hypothesis for the formation of the solar system from a primordial cloud of gas and dust. Key points include the differentiation of the Earth into a core, mantle and crust due to melting after accretion and the abundance of iron in the Earth's core versus the crust. The chapter also provides details about the different types of planets, asteroids, comets and meteorites that make up the solar system.
Earth, sun and moon qr codes
The sun is a medium-sized yellow star composed mostly of hydrogen and helium gases that produces the energy sustaining life on Earth. It has a surface that changes over time with features like sunspots and solar flares. The moon has a surface of plains, mountains, valleys and craters that does not change or erode due to lacking an atmosphere and water. While the Earth shares similar surface features with the moon, it differs in having erosion, weathering, and geological activity that continuously alter its surface along with abundant water and a breathable atmosphere allowing life.
Ncert universe
The document provides information about celestial bodies like stars, constellations, and planets in our solar system. It discusses how ancient people used constellations like Ursa Major to determine directions. It describes the nine planets in our solar system, with Mercury being the closest to the sun and Pluto being the farthest, along with other objects like asteroids and meteoroids. The sun and these celestial bodies form our solar system. It also briefly mentions Neil Armstrong being the first person to walk on the moon.
Chapter 24
The document provides an overview of the solar system, including its origin and components. It discusses:
1) The modern view that the solar system formed from a rotating cloud of gas and dust that condensed to form the Sun and planets as it contracted.
2) The inner planets Mercury, Venus, Earth, and Mars, including characteristics such as temperatures, atmospheres, and evidence of past water on Mars.
3) The outer planets Jupiter, Saturn, Uranus, and Neptune, noting their large sizes and gaseous compositions. Moons and rings are also mentioned.
Similar to Origins of Our Solar System (20)
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
ここ3000字までしか入らないけどタイトルの方がたくさん文字入ると思います。
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
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Origins of Our Solar System
- 8. In about 1.1 billion years, the sun will be 10% brighter which will cause the greenhouse effect and dry out the water on the earth and evaporate into space with no return
- 9. In about 3.5 billion years from now, the Sun will be 40% brighter than it is today. It will be so hot that the oceans will boil and the water vapor lost to space. The ice caps will permanently melt, and snow will be ancient history. Eventually temperatures will get so hot that life will be unable to survive on the surface of the earth.
- 10. In about 6 billion years, the Sun’s core will run out of hydrogen. And the inert helium built up in the core will become unstable and collapse under its own weight. This will cause the core to heat up and get denser. The Sun will grow in size and enter the red giant phase. The expanding Sun will consume the orbits of inner planets, and probably consume the Earth as well.
- 11. The Sun will burn helium in its core, creating carbon and oxygen for about 100 million years until this source of fuel runs out. Finally, the of helium becomes unstable causing the Sun to pulse. It will blow off a large fraction of its atmosphere into space. Without its atmosphere, the final Sun will be the carbon-oxygen core created when it was burning helium. It will become a white dwarf similar in the size of the earth. Without fusion, the Sun will slowly cool down over trillions of years, eventually becoming the same. The Sun’s future will be cold and dark.