| A | B |
|---|
| Inner Core | Made of solid iron; hottest layer |
| Outer Core | molten metal; responsible for the Earth's magnetic field |
| Core | the thickest layer all together |
| Mantle | molten rock; flows |
| Crust | thinnest layer; we live here; floats on the mantle |
| Convergent Boundary | plates move together |
| Sliding Boundary | plates slide against each other in opposite directions |
| Divergent Boundary | plates move apart |
| Earthquake | sudden shift in the Earth's crust |
| Fault | break, crack, or fracture in the Earth's crust |
| Focus | place where the earthquake begins |
| Epicenter | point on surface directly above the focus |
| Volcano | opening in the Earth's crust where lava can escape |
| magma | melted rock inside the Earth |
| lava | melted rock that flows from a volcano |
| mineral | atoms are arranged in a regular pattern, formed naturally, can be 1 or more elements |
| crystal | solid, regular shapes in minerals |
| sediment | weathered rocks, minerals, fossils, and shells carried and dropped by water, wind, and ice |
| sedimentary rock | forms from layers of sediment |
| weathering | the process by which larger rocks are broken down into sediments |
| igneous rock | formed from molten rock that cools and hardens (fire) |
| metamorphic rock | a rock that changes into another rock under great heat and pressure |
