"Plate Tectonics Crossword": HTML5 Crossword

Across

2. term for the super continent which contained all the plates together (6)
7. process in which two plates collide, the denser ocean plate descends (10)
8. The solid, outer layer of the Earth = the crust and the mantle (11)
10. extremely deep areas in the ocean that are created by a subducting plate (6)
12. The theory that the earth is broken into plates (14)
15. The thin and solid outermost layer of the Earth above the mantle (5)
17. Proposed the continental drift theory in the 1900s (6,7)

Down

1. long, narrow depression formed at divergent boundaries (4,6)
3. The location on the surface directly above the earthquake focus (9)
4. measures and records earthquake magnitude (12)
5. The layer of hot, solid material between Earth's crust and core (6)
6. A shaking or sliding of the ground (10)
9. A volcano that has not erupted for thousands of years (14)
10. The boundary between tectonic plates sliding past each other horizontally (17)
11. A giant wave usually caused by an earthquake beneath the ocean floor (7)
13. an underwater mountain range made at divergent plate boundaries (13)
14. The soft layer of the mantle on which the tectonic plates move (13)
16. A weak spot in the crust where magma has come to the surface (7)