Across
- 3. A place where two tectonic plates push towards each other
- 5. The rigid outer layer of Earth; crust and upper mantle
- 6. The movement of continents across Earth's surface
- 7. A scientist who studies Earth
- 9. A border between two neighboring plates
- 11. Valley a long indent/vallet formed when a continent pulls aart
- 15. Any rock formed by the cooling of magma and lava
- 16. A single large landmass made of smaller continents
- 17. A place where two tectonic plates slide past eachother
- 20. A method to determine if one rock layer is older than another
Down
- 1. rock Any rock that formed from a pre-existing rock
- 2. Gluing together of sediments by new mineral crystals
- 4. squeezing together of sediment by overlying layers
- 8. rock The original rock from which a metamorphic rock is formed
- 10. Wearing away and removal of rock
- 12. a crack where two slabs of rock move past each other
- 13. Forms as a crystal like structure and is the building block of rocks
- 14. The outer most layer of Earth
- 18. Boundary A place where two tectonic plates move away from each other
- 19. Small broken pieces of rocks