Across
- 2. the center of the earth
- 6. getting hot a liquidy
- 10. the current eon
- 12. a type of mountain building uses plates
- 13. the eon after the hadean
- 16. rocks that come from magma
- 17. the first eon where everything was hOT
- 19. the eon when photosynthetic bacteria came
- 20. a force that makes sedimentary rocks
Down
- 1. a type of rock made under pressure
- 3. a thing that happens over time with weather or glaciers
- 4. lava still cooking
- 5. a type of rock created with heat and pressure
- 7. things that make sedimentary rocks
- 8. a type of mountain building with lava
- 9. a crack in the earth from tectonic plates
- 11. layers in rock mostly sedimentary
- 14. old bones
- 15. a layer of earth
- 18. the top layer in the earth