| A | B |
|---|
| lava | Molten rock found outside the Earth. |
| magma | Molten rock found inside the Earth. |
| granite, pumice, obsidian | examples of igneous rocks. |
| limestone, sandstone, shale, coal | examples of sedimentary rocks. |
| marble, slate, gneiss | examples of metamorphic rocks. |
| earthquakes | These are caused by a movement of the Earth's crust. |
| Erosion | The carrying away of sediments. |
| Crust | The outermost layer of the Earth |
| Mantle | A layer of heated molten rock. |
| Outer Core | A layer of the Earth that is molten metal. (iron, nickel) |
| Inner Core | A layer of the Earth that is solid metal (iron, nickel) |
| Plates | Large pieces of rock on Earth that the crust is broken into. |
| volcano | An opening in the Earth's crust where lava, gases and ash escape. |
| weathering | The weathering away of rock by wind, water, and temperature. |
| sediment | tiny bits of rock, sand, or clay as a result of weathering. |
| fossils | The remains of an organism that lived long ago. |
