Across
- 4. rain, sleet, snow, or hail
- 6. The layer we live in
- 7. we can't see this substance
- 9. the largest layer of the earth
- 13. the layer we live on
- 15. one of the layers of the earth
Down
- 1. the center of our earth
- 2. Mount Everest is the tallest
- 3. A type of cloud
- 5. very hard rock
- 8. tiny pieces of sand stuck together
- 10. means "ignite"
- 11. formed from condensation
- 12. When tectonic plates move
- 13. a puffy cloud
- 14. there is lots of this in the core