Across
- 2. A cast area of Earth's surface below ocean water; form and grow larger at a divergent boundary
- 5. Occurs when material in Earth's mantle rises and melts forming magma; don't move
- 7. Compression causes the hanging wall to slide up and over the footwall
- 8. Break in the rock of Earth's crust or mantle
- 9. Form when magma rises into the crust but is trapped and cannot break through the surface
- 12. Squeezes rock until it bends or breaks
- 14. Plates below the ocean
- 15. Pulls and stretches rock
- 17. Plates move apart
- 19. Form when two continental plates collide at a convergent boundary
- 20. Shearing causes one wall to move along the other
Down
- 1. Plates that make up the continents
- 3. Pushes rock in opposite direction
- 4. Tectonic plates move because of ________ currents in Earth's mantle
- 6. Plates move past each other in opposite directions
- 10. Occurs when stress builds up and is suddenly released
- 11. Plates move together
- 13. Chain of volcanic islands
- 16. Volcanoes form as ____ rises and fills the space that results when plates move apart
- 18. Tension causes one side of the fault to slip down relative to the other
