m

1. Lie along boundaries of tectonic plates where earthquakes occur frequently
4. A shell mostly made up of solid rocks and minerals
9. One of the main metals in the Earth's core
10. Able to be shaped and molded easily
13. Occur along divergent plate boundaries, where new ocean floor is made
15. The state of matter where matter is most tightly packed
16. Beneath the crust and made mostly of rocks and mineral
18. At the border of divergent plates, and can occur both on land and underwater
20. The moving of Earth's magma, making tectonic plates too move

2. A group of islands scattered across a body of water
3. Occurs when two convergent plates collide
4. Deposit of dead plants compressed and heated over the course of millions of years
5. The remains of dead animals and plants after long periods of time
6. An oceanic plate which also happens to be the largest plate on Earth
7. The outer part of the Earth containing the crust and outer mantle
8. Either created by erosion or by subduction
11. The state of matter where matter is less tightly packed than a solid but not gaseous
12. the centermost layer of the Earth, comprised of iron and nickel
14. Scientist who proposed the continental drift theory
17. One of the main metals in the Earth's core
19. The innermost layer of the Earth, comprised of mostly iron and nickel