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| Question | Answer |
|---|---|
| milky way galaxy | is the galaxy in which we live it is a spiral shaped galaxy that contains about 200 billion stars including our star |
| asteroid | an asteroid is a large rock in outer space some can be very large while others are as small as a grain of sand |
| comet | a small frozen mass of ice and dust orbiting the sun |
| terrestrial | relating to land |
| orbit | to travel in a curved path around the sun or a planet |
| rotation | one complete turn on an axis |
| satellite | a moon that orbits a planet |
| sun | a star around which earth and other planets revolve it produces heat, light, and energy |
| gas giant | any of the seconed four planets from the sun which are made of gas |