Across
- 3. layers of sedimentary rock that are built up over time
- 5. the thin outer layer of earth
- 6. the layer of magma between the earth's crust and the core
- 8. a type of mountain formation where lava cools and builds up
- 10. 1st life on earth, beginning of plate tectonics
- 11. A type of rock that is formed by magma/lava cooling
- 13. The 1st of earths eons, known as fireball earth
- 14. naturally preserved evidence of life
- 16. A type of rock the is formed by intense heat and/or pressure
- 18. A type of rock that is formed by sediments compacting
- 19. forces pushing against something, ex. gravity
Down
- 1. a type of mountain formation where to plates collide and sub duct
- 2. a in earth's crust due to tectonic forces
- 4. the process where rocks slowly fall apart usually via water or ice also known as weathering
- 6. the process of which rocks turn into magma via high temperatures
- 7. The 1st visible life on earth, current time
- 9. sand of dirt that has been eroded from rocks can contain fossils or shells
- 12. melted rock inside the earth's crust
- 15. the center of the earth, below the mantle
- 17. The eon with the 1st Eukaryotic life