Across
- 2. Exactly why tectonic plates move
- 5. Contributes to the heat inside he Earth
- 9. On average it switches every 200,000 years
- 11. The type of plate underlying most land
- 13. Temperatures as high as 10,000 F
- 14. It keeps the inner core solid
- 15. Molten rock in side the earth
- 16. Process that controls the structure and properties of the Earth's crust
Down
- 1. What happens where oceanic plates and continental plates collide
- 3. The outermost and thinnest part of the earth
- 4. The layer of rock between the crust and the core
- 6. Boundaries where plates move together
- 7. Crack in the earth
- 8. 200 miles wide at their widest point
- 10. Consists of the crust and rigid upper mantle
- 12. Boundaries where plates move apart