Across
- 3. the hottest part
- 4. we live on it
- 5. its mostly rock
- 6. found under the oceans
- 9. the thinnest layer
- 10. very thick layer of rock inside the planet
Down
- 1. a current in a fluid that results from convection
- 2. silicate rocks rich in magnesium and iron
- 7. also known as the mesosphere
- 8. liquid layer