Across
- 2. Process where one plate goes under another
- 4. Movement inside Earth that drives plate motion
- 5. Molten rock beneath Earth’s surface
- 8. Rigid outer layer made of crust and upper mantle
- 9. The thickest layer of Earth
- 10. The supercontinent that once joined all landmasses
- 11. Boundary where plates collide
- 13. Thinner and denser type of plate
- 15. The outermost layer of Earth
Down
- 1. Liquid layer responsible for Earth’s magnetic field
- 3. Area around the Pacific with many volcanoes and earthquakes
- 6. Plates moving apart form this boundary
- 7. Scientist who proposed continental drift
- 12. Boundary where plates slide past each other
- 14. Shaking of the ground caused by plate movement