Across
- 3. layer of gases that surrounds Earth
- 7. Frozen water on earth
- 8. thick middle layer in the solid part of Earth
- 9. specific type of metal
- 12. solid part of Earth, including the soil and Earth's rocky center
- 14. outer part of Earth's magnetic field
- 15. plastic layer within the mantle
Down
- 1. A force of attraction between objects that is due to their masses.
- 2. All living organisms on Earth
- 4. liquid water on Earth
- 5. a shape like a ball
- 6. Earth's dense, metallic center
- 10. rocky, outermost layer of Earth
- 11. A rigid layer made up of the uppermost part of the mantle and the crust.
- 13. amount of mass, or substanse, in a matirial