Across
- 3. Compass points north
- 6. Process where oceanic crust sinks below plates
- 7. Process where new oceanic crust forms
- 8. Hot air balloons and lava lamps are an example of this
- 10. A conveyor belt is an example of this
- 14. The theory that plates move on top of Earth's mantle
- 17. Two plates seperate
- 18. A cloth being pulled off of a table is an example of this
- 19. Compass points south
- 20. Where new crust is forming
Down
- 1. Two plates collide
- 2. The supercontinent where all the continents are connected
- 4. Two plates slide past each other
- 5. The area where the denser plate sinks into Earth
- 9. Scientists use these to measure how fast continents move
- 11. One of the specimens Alfred Wegener used to support his theory
- 12. Started the theory of Continental Drift
- 13. Used an echo sounder to map the depth of the ocean
- 15. Magnetic field reverses directions
- 16. A flattened hamburger patty is an example of this