Plate Tectonics Crossword

2. Melted rock inside the earth
3. Area surrounding the pacific ocean where many volcanos form
5. Layer of the Earth beneath the lithosphere containing slow flowing rock
6. Melted rock outside the earth
7. Two tectonic plates moving towards each other
9. A massive amount of lava and ash leaving a volcano
13. Magma building up under the earth's surface, often near a tectonic place boundary
14. The earths crust on the land
16. The Earths crust on the sea floor
18. When one tectonic plates slides under another
20. A layer of the earth containing the crust and part of the mantle

1. Two tectonic plates moving past each other
4. Two tectonic plates moving away from each other
8. A shift of tectonic plates, often occurring at a transform plate boundary
10. A massive, slowly moving piece of rock
11. Large, heighten area of rock, typically caused by convergent plate boundaries
12. Semi-solid layer of the earth
13. Any form of volcanic activity
15. The force from inside the earth that makes tectonic plates move
17. The theory that the earth's crust is made of many, slowly moving plates
19. A area underneath the crust of unusually high magma heat and pressure; causes volcanic island chains