Across
- 1. Less dense plates slide under more dense plates
- 3. Hot liquid
- 6. 2 types of plates
- 9. hot magma in the earth moves towards the surface, cools then sinks again
- 10. Less dense plate slides under more dense plate
- 11. Violent shaking of the ground
- 13. The plastic layer below the lithosphere
- 14. Plates below the ocean
- 16. the earths crust and upper mantle
- 17. the sea floor spreading
- 18. broken pieces of earth
Down
- 2. boundaries between two plates that are sliding past each other
- 4. Plates under the continent
- 5. boundaries between two plates that are moving apart or rifting
- 7. boundaries between two plates that are colliding
- 8. The crust and part of the upper mantle
- 12. A huge wave caused by an disturbance in the ocean
- 15. Opening in the crust of planets that erupt molten rock,gas, and ash