Earth Science Puzzle

2. The parts of Earth that contain living organisms
4. The flow that transfers heat within a fluid
7. A dark, fine-grained rock found in the oceanic crust
8. The layer of rock that forms Earth's outer skin
12. All of Earth's water
15. A measure of how much mass there is in a given volume of a substance
17. Ability to do work or cause change
19. The transfer of energy by electromagnetic waves
20. The layer of hot, solid material between Earth's crust and core
21. The transfer of thermal energy by the movement of a fluid
22. Has three main parts: a metal core, a solid middle layer, and a rocky outer layer

1. Vibrations that travel through Earth carrying the energy released during an earthquake
3. A dense sphere of solid iron and nickel at the center of Earth
5. Forces that construct, or build up, mountains
6. A layer of molten iron and nickel that surrounds the inner core of Earth
9. A group of parts that work together in another part of earth
10. The relatively thin envelope of gases that form earth's outermost layer
11. A rigid layer made up of the uppermost part of the mantle and crust
13. Any natural process that tears down or weakens away Earth's surface
14. The force pushing on a surface divided by the area of that surface
16. The transfer of thermal energy from one particle of matter to another
18. A rock usually a light color and has coarse grains