Across
- 5. The scientist that came up with continental drift
- 6. a chain of explosive volcanoes
- 7. earth's third layer and very cold some of the weather is -130F
- 10. a fairly common rock material
- 11. a giant piece of earth that takes up 84 percent of earth
- 13. Layer of hot material in between earth's crust and core
- 15. outermost layer of earth
- 18. when two tectonic plates move away from eachother
- 21. a massive piece of rock that slowly moves
- 22. the lady who made the first scientific map of the atlantic ocean
- 24. the theory that all continents were all conected because of continental drift
Down
- 1. right bellow the lithosphere inside of earth
- 2. curved chain formed by volcanoes
- 3. very hot liquid that comes out of volcanoes
- 4. when several tectonic plates collide
- 8. vibration of energy that travels throughout earth's layers
- 9. a dark volcanic rock
- 12. when a tectonic plate slides under another tectonic plate
- 14. a very common igneous rock
- 16. thick low density outermost layer of earth
- 17. undersea plate boundary
- 19. earth's land and continents about 250 million years ago
- 20. black metallic iron oxide mineral
- 23. a system that scans the bottom of the ocean
- 25. when the earth's ground shakes violently