PLATE TECTONICS CROSSWORD

2. When one plate is forced below another.
5. The process of continents breaking up.
8. A channel in the ocean floor formed when plates collide and the crust subducts (2 words).
10. Type of boundary where tectonic plates are sliding past each other in opposite directions (2 words).
11. A boundary where plates are moving apart is called a c----------- boundary.
14. A layer of 'plastic' semi-solid rock in the mantle that the tectonic plates move on.
15. A boundary where plates are moving apart is called a d-------- boundary.
17. The place where an earthquake starts above ground.
18. Molten rock that has erupted onto Earth's surface.
19. The place where an earthquake starts, below ground.
20. The theory that the Earth's crust is cracked into large pieces (2 words).
21. The process of continents separating and drifting across the Earth (2 words)

1. A chain of islands at the edge of colliding tectonic plates (2 words).
3. A device that measures earthquakes.
4. Patterns of magnetism trapped in rocks on each side of plate boundaries (2 words).
6. The crust that forms the ocean floor (2 words).
7. Molten rock below the Earth's surface.
9. A boundary where plates are colliding is called a c--------- boundary.
12. A boundary where plates are colliding is called a d---------- boundary.
13. The crust that forms the continents (2 words).
16. The process of new crust forming at ocean ridges and spreading outwards (3 words).