Across
- 2. rocky outside also known as the inner planets
- 6. to spin on an axis
- 7. used to idenify and difine geologic periods.
- 8. holds everything in orbit, we would not exist with out it
- 9. the gravitational pull of planets
- 11. remains of ancient organisms preserved in rock
- 12. earths axis is on an angel or
- 13. when moon blocks light from the sun
- 15. the light of the moon decreases
- 16. a measurement of time or 365 days
Down
- 1. moving around another object
- 3. older rocks on the bottom and younger rock on top
- 4. the lighting of the moon increases
- 5. when the earth blocks light from reaching the moon
- 10. outer planets also known as the gas giants
- 14. another word for rock layers