The Solar System
- Created by: M.Qvvlls
- Created on: 20-05-17 15:35
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- The Solar System
- From the Sun there is: Mercury, Venus, Earth and Mars, then the Asteroid Belt, then Jupiter, Saturn, Uranus and Neptune.
- Stars are huge, (Suns diameter = 100x bigger than Earth's). They give out lots of light.
- Planets are much smaller, they just reflect sunlight falling on them.
- The solar system formed from big clouds of dust and gas. (possibly a nearby star caused one cloud to get squeezed).
- Once particles had moved closer, gravity then pulled everything closer until the whole cloud began to collapse in on itself.
- At the centre of the collapse, particles began to form a protostar. When the temperature got high enough fusion began (the joining of hyrogen nuclei to make helium.
- Fusion gave out massive amounts of heat and light (our star was formed-the sun).
- Surrounding the sun, material from the cloud containing hydrogen, helium and heavier elements clumped together to form planets.
- The oldest rocks on Earth are meteorites, they are roughly 4500 million years old, so the solar system is at least that old.
- Surrounding the sun, material from the cloud containing hydrogen, helium and heavier elements clumped together to form planets.
- Fusion gave out massive amounts of heat and light (our star was formed-the sun).
- At the centre of the collapse, particles began to form a protostar. When the temperature got high enough fusion began (the joining of hyrogen nuclei to make helium.
- Once particles had moved closer, gravity then pulled everything closer until the whole cloud began to collapse in on itself.
- Asteroids and comets are smaller than most planets.
- Asteroids and comets are made of stuff left over from the formation of the solar system.
- Rocks between Mars and Jupiter stayed as smallish lumps of rubble and rock (Asteroids).
- Comets are balls of rock, dust and ice which orbit the sun in very elongated ellipses.
- As a comet approaches the sun, its ice melts leaving a bright tail of gas and debris which can be millions of kilometres long.
- Comets are balls of rock, dust and ice which orbit the sun in very elongated ellipses.
- Rocks between Mars and Jupiter stayed as smallish lumps of rubble and rock (Asteroids).
- Asteroids and comets are made of stuff left over from the formation of the solar system.
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