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5 Cards in this Set
- Front
- Back
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Earth in the solar system: |
The earth is one of the eight planets which all move in an almost circular orbit around the sun alongside with smaller objects (asteroids, dwarf planets and comets. Moons orbit several planets.
All of these things make up the solar system |
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Describe the main differences between planets, moons, the sun, comets and asteroids including their relative sizes: |
The sun is a star (biggest) Planets orbit the sun (2nd biggest) Moons orbit a planet (3rd biggest) Asteroids are made up of rocks Comets are made up of ice and rock (both 4th biggest) |
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How many years ago did the universe form, and from what ? |
The universe was formed about five thousand million years ago and from dust and clouds of gases.
Over very long periods of time |
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Is the sun a star? |
The sun is one of thousands of millions of stars in the Milky Way galaxy |
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What makes up the universe? |
There are thousands of millions of galaxies and each contain thousands of millions of stars. These galaxies make up the universe |
