Earth Science Unit 3

2. the boundary between two tectonic plates that are colliding with each other
4. the strength of an earthquake
6. measures the magnitude of an earthquake on a scale of 1-10
10. the theory that the Earth's crust is divided into plates that are always moving
13. the molten rock that erupts from the volcano along with ash and hot gases
14. scientist that studies volcanoes
16. the boundary between tectonic plates that are sliding past each other horizontally
17. the layer of Earth extending from Earth's center to the bottom of the mantle(metallic)
18. the dropping of weathered rock by wind or moving water
20. the point on Earth's surface directly above the focus of an earthquake
21. the thin outer layer of Earth

1. the process of rock breaking apart
3. natural land shape or feature
5. the boundary between two tectonic plated moving away from each other
7. the liquid below Earth's crust
8. very small pieces of rock
9. scientist that studies earthquakes
11. the process of moving weathered rock by wind or water
12. thick layer of earth beneath the crust
14. a place where hot gases, smoke, and melted rock come out of the ground to Earth's surface
15. a break in the Earth's crust where rock on one side moves in relation to rock on the other side
19. a shaking of Earth's surface that can cause land to rise and fall