Across
- 3. collection of planets, moons, astroids,comets, dust, gas that prbit around the sun
- 6. how much matter an object contains
- 8. the motion of one body around another
- 9. a proportion between two sets
- 11. stars with gas and dust held together by gravitational force
- 12. the space between two points
Down
- 1. force where you cant see something physically touching
- 2. the turning of a planet on its axis
- 4. a period of unique climate
- 5. force that holds in the planets in orbit around the sun
- 7. the amount of moon you see given how much it is lit
- 10. the moon moves infront of the sun creating a shadow