Across
- 1. The material that builds up and compresses into rock
- 4. The axis of earth that divides the northern and southern hemispheres
- 5. When an object spins on its axis
- 6. A group of planets in our solar system that are very light, rocky, and icy
- 7. One of the variables that causes the force of gravity
- 9. A type of fossil that helps date rock strata
- 13. When the moon appears fully illuminated in the night sky
- 14. A single layer in a stack of sedimentary rock
- 15. When an object orbits around another object
Down
- 1. When the moon blocks out the sun from earth's perspective
- 2. A group of planets in our solar system that are very dense and rocky
- 3. When the earth blocks the moon from the sun and appears red
- 8. When the light from the sun directly hits earth in a certain spot
- 10. When the moon appears dark in the night sky
- 11. A force of attraction between any two objects with mass
- 12. Remains or impression of ancient organisms preserved in rock