Across
- 2. A substance that has reached its melting point
- 3. Basically a moat of molten nickel and iron
- 7. A ball of solid nickel and iron
- 9. The other metal at the Earth's core
- 10. What's in the mantle
- 11. The least dense layer of the Earth
- 12. These are plantes in the mantle
- 14. Another substance the Earth's crust is made of
Down
- 1. The magma layer of the Earth
- 4. The transfer of heat through density
- 5. What caused the Earth to have layers
- 6. A substance the Earth's crust is made of
- 8. One of the metals at the Earth's core
- 13. The planet we live on