| A | B |
|---|
| Transform Boundary | A plate boundary where two plates move past each other in opposite directions |
| Plate Tectonics | The theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle |
| Plate | A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust |
| Scientific Theory | A well-tested concept that explains a wide range of observations |
| Fault | A break in Earth's crust where slabs of rock slip past each other |
| Convergent Boundary | A plate boundary where two plates move towards each other |
| Divergent Boundary | A plate boundary where two plates move away from each other |
| Rift Valley | A deep valley that forms when two plates move apart |
