Across
- 1. Force of attraction between objects
- 2. Thick middle layer
- 4. rocky part of the Earth
- 5. Liquid water on Earth
- 8. A layer of gasses surrounding the Earth
- 10. A shape
- 11. Plastic, flowing layer
- 12. Dense part of Earth
- 13. Rigid layer
Down
- 1. The solid part of the Earth
- 2. Outer part of the magnetic field
- 3. metal
- 6. All living organisms on Earth
- 7. Frozen water on Earth
- 9. Amount of mass, or substance, in a material