| A | B |
|---|
| Pangaea | The name Alfred Wegener gave to his proposed supercontinent. |
| Continental Drift | Alfred Wegener's theory that the continents on either side of the Atlantic Ocean were once joined. |
| Laurasia and Gondwanaland | The landmasses produced by the first breakup of Pangaea |
| Types of evidence that the continents have moved | Fossil evidence, rock evidence, glacier evidence |
| Divergent boundary | A boundary where plates move away from each other |
| Convergent boundary | A boundary where two plates come together |
| Transform boundary | A boundary where two plates slide in opposite directions |
| San Andreas Fault | An example of a transform boundary |
| Convection in the mantle (asthenosphere) | Provides the driving force for movement of the tectonic plates |
| Mid-ocean ridge | Long underwater mountain range running through the middle of the ocean bottoms |
| Subduction zone | A place where one tectonic plate moves under another. There it melts into the mantle, volcanoes may form, and a trench is created. |
| Geothermal energy | A name for the earth's internal heat |
| Himalayan Mountains | Formed when India collided with Asia. (This is obviously a convergent boundary.) |
| Plate Tectonics | The lithosphere of the earth is divided into 'plates." These plates are constantly moving. At the plate boundaries earthquakes, volcanoes, and mountain building occur. |
