Across
- 3. german geolgist
- 6. also a crack in the earth
- 7. a line of mountains
- 9. movement of land masses
- 11. transmission of heat
- 13. alter the shape
Down
- 1. earth and mantle
- 2. an increase of density
- 4. the lower layer of the crust
- 5. crack in the earth
- 8. bottom of the ocean
- 9. outer layer of the earth
- 10. transfer of heat
- 12. center of the earth