| A | B |
|---|
| asthenosphere | the layer of Earth below the lithosphere; the upper part of the mantle |
| convection | the process by which heat energy is transferred through liquids or gases |
| convection current | the path along which energy is tranferred during convection |
| convergent boundary | a place where the plates that make up Earth's crust and upper mantle collide or come together |
| divergent boundary | a place where the plate that make up Earth's crust and upper mantle move away from one another |
| dome mountain | a mountain formed when magma lifts Earth's surface, creating a broad dome, or bulge |
| fault-block mountain | a mountain formed when masses of rock move up or down along a fault |
| folded mountain | a mountain formed when two tectonic plates collide |
| lithosphere | the solid, rocky layer of Earth, including the top part of the mantle |
| transform-fault boundary | a place where the plates that make up Earth's crust and upper mantle move past one another |
| volcano | an opening in Earth's crust through which hot gases, rock fragments, and molten rock erupt |
