tectonic plates

4. the outer layer of the earth
5. the study of tectonic plates
8. when two things hit eachother
9. the earths crust and upper mantle
11. long narrow depressions on the seafloor that form at the boundary of tectonic plates
13. the part of the mantle under the lithosphere
14. device that detects earthquakes
16. big wave of water caused by earthquakes
17. the Earth's interior
18. the center of the earth

1. boundaries that cause earthquakes
2. what happens when 2 tectonic plates hit
3. boundary that causes volcanoes
6. tectonic plates that are pushed together and the crust becomes shorter and thicker
7. when magma shoots out of a mountain
8. when plates move towards each other and collide
10. rock that moves under the earth's surface
12. linked to the movement of tectonic plates at subduction zones
15. hot fluid underneath the earth's crust
19. plates that are under the ocean