Across
- 4. force of attraction between every object and every other object that exists because of mass
- 7. all living organisms on Earth
- 9. plastic, flowing layer within the mantle
- 10. liquid water on Earth
- 11. layer of gasses surrounding Earth
- 14. frozen water on Earth
Down
- 1. outer part of the Earth's magnetic field
- 2. thick middle layer in the solid part of earth
- 3. rigid layer that includes the crust and uppermost mantle
- 4. the solid part of Earth, including the soil and earth's rocky center
- 5. Specific type of metal
- 6. rocky, outermost layer of Earth
- 8. amount of mass, or substance, in a material
- 12. Shape like a ball
- 13. Earth's dense, metallic center