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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 star,including our sun. |
| 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 secondfour planets from the Sun,which are made of gas. |
| Gravity | the force that pulls objects toward each other. |
| Star | an object in space that produces its own heat and light. |
| Galaxy | a group of millions of stars. |