Across
- 4. a person who studies Earth
- 5. out of this world
- 8. the science of the Earth
- 9. planet's crust
- 10. a platform with sloping sides
Down
- 1. underground place
- 2. Cotta brownish-red pottery
- 3. surrounded by land
- 6. an area of land under the jurisdiction of a ruler or state
- 7. crystal stone