Science

1. One of the main metals in the Earth's core
3. An oceanic plate which also happens to be the largest plate on Earth
4. A shell mostly made up of solid rocks and minerals
6. The state of matter where matter is most tightly packed
9. The state of matter where matter is less tightly packed than a solid but not gaseous
11. A group of islands scattered across a body of water
12. The moving of Earth's magma, making tectonic plates too move
15. One of the main metals in the Earth's core
16. Lie along boundaries of tectonic plates where earthquakes occur frequently
18. Beneath the crust and made mostly of rocks and mineral
19. Scientist who proposed the continental drift theory
20. The remains of dead animals and plants after long periods of time

2. The outer part of the Earth containing the crust and outer mantle
4. The innermost layer of the Earth, comprised of mostly iron and nickel
5. Deposit of dead plants compressed and heated over the course of millions of years
7. Occur along divergent plate boundaries, where new ocean floor is made
8. Occurs when two convergent plates collide
10. Able to be shaped and molded easily
13. At the border of divergent plates, and can occur both on land and under water
14. The upper layer of the Earth below the Lithosphere
17. Either created by erosion or by subduction