Plate Tectonics Crossword

3. a rigid layer of the earth's crust that is believed to drift slowly
8. volcanic activity or phenomena
9. the gradual movement of the continents across the earth's surface through geological time
10. two plates sliding against each other
12. the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur
14. the movement of the plates that make up earth's crust
15. the science that deals with the earth's physical structure and substance, its history, and the processes that act on it

1. german meteorologist and geophysicist who formulated the first complete statement of the continental drift hypothesis.
2. process by which heat is transferred by movement of a heated fluid such as air or water
4. part of the motion of a tectonic plate caused by its subduction
5. large-scale processes affecting the structure of the earth's crust
6. the rigid outer part of the earth, consisting of the crust and upper mantle
7. a supercontinent that existed during the late Paleozoic and early Mesozoic eras
11. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate
13. a feature on the earth's surface that's a part of the terrain