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The Solar System
| Term | Definition |
|---|---|
| The Solar System | |
| 1. solar system | Central star and objects that move around it |
| 2. phases | changes in the apparent shape of the moon |
| 3. telescope | Instrument used to observe a distant object |
| 4. planet | Large object that moves around a star |
| 5. space probe | Vehicle sent to explore space |
| 6. comet | Small mass of ice and dust that orbits the sun |
| 7. axis | Imaginary line that the Earth rotates on |
| 8. asteroids | Objects that move between Mars and Jupiter |
| 9. gas giants | Large spheres made mostly of gases |
| 10. inner planets | Planets between the asteroid belt and the sun |
| 11. orbit | Path an object takes when revolving around another object |
| 12. satellite | An object that moves around another |
| 13. star | Burning sphere of gas |
| 14. rotation | Spinning movement of the Earth |
| 15. outer planets | Jupiter, Saturn, Uranus, Neptune and Pluto |
| 16. revolution | Movement of the Earth around the sun |