Across
- 3. where two tectonic plates meet
- 4. the ocean floor
- 5. when the plates come togeather
- 9. when the plates split apart
- 10. pieces of the lithosphere that move aroundon top of the asthenosphere
Down
- 1. where the plates are slidding past one another
- 2. the process where molten rock from inside earth rises through the cracks in ridges, cools and forms new oceanic crust
- 3. was the supercontinent tht existed during the paleozoic and mesozic eras about 250 million years ago
- 6. An opening in the earth's crust through which molten lava, ash, and gases are ejected
- 7. the theory that explains how large pieces of the lithosphere called plate move ans change shape
- 8. 1.A large natural elevation of the earth's surface rising abruptly from the surrounding level; a large steep hill.
- 11. Any of the world's main continuous expanses of land