Across
- 2. a mountain made from molten material
- 6. the process of ocean floor going back into earth
- 10. A type of stress that pushes objects together
- 13. The process of new sea floor being made
- 15. The strongest wave made by earthquakes
- 16. An old bone found inside of earth
- 17. when magma reaches the surface of a volcano
- 18. Pieces of earths crust broken up
- 19. The weakest wave made by earthquakes
- 20. A underwater mountain
Down
- 1. A current that happens in the mantle of the earth
- 3. A belt with a lot of volcanoes
- 4. Type of force that changes a objects shape
- 5. The movement of continents with the convection current in the mantle
- 7. A type of stress that pulls objects apart
- 8. the transfer of heat through touch
- 9. the outer edge of the earth
- 11. A Supercontinent
- 12. A machine that measures earthquakes
- 14. The part of earth where the convection current takes place