Across
- 2. a process where one piece of rock goes under at a convergent boundary
- 5. giant pieces of rock that make Earth's crust
- 6. when magma reaches the surface of Earth
- 8. the transfer of energy when two materials touch
- 14. an unexpected, violent, shaking of the ground
- 15. supercontinent that was on earth 200-300 million years ago
- 16. a force that acts of rock to change its shape or volume
- 17. any trace of an organism that is preserved in rock
- 18. the transfer of energy in rays of light
- 20. type of stress that squeezes rock
Down
- 1. a mountain that is formed when magma reaches the surface
- 3. a boundary where plates move together
- 4. type of stress that pushes a rock in two opposite directions.
- 7. a boundary where plates move apart
- 9. the edges of Earth's plates
- 10. the transfer of energy by the movement of fluids
- 11. a boundary where plates slip past each other
- 12. an instrument that measures earthquakes
- 13. type of stress that pulls on the rock
- 19. a measure of how much mass is in a given substance