Across
- 3. the force that makes objects fall toward earth's center
- 5. a very small fragment of a much larger object
- 9. heat transfer between materials that are touching
- 10. a group of parts that work together as a whole
- 11. contains all of Earth's water
- 12. transfer of energy that is carried in rays
- 13. uppermost mantle
- 15. has three main parts
Down
- 1. a layer of hot rock
- 2. a rock that is a light color and has coarse grains
- 4. a natural power that acts on an object
- 6. the thin envelope of gases that forms Earth's outermost layer
- 7. heat transfer by the movement of a fluid
- 8. soft layer below the lithosphere
- 14. a dark fine grained rock