| A | B |
| landform | A natural feature on earth's surface. How rocks, dirt and water are shaped. |
| topography | The shape of landforms in an area |
| crust | The Earth's hard outer layer |
| mantle | The part of the Earth between the crust and the outer core |
| outer core | The layer of earth between the mantle and the inner core |
| inner core | The solid inner layer of the Earth |
| magma | Melted rock under the Earth's crust |
| lava | Hot, melted rock that pours out of a volcano |
| volcano | A vent in the Earth's crust in which lava can come out |
| weathering | When rock breaks down into smaller pieces |
| erosion | The process that transports rock, soil or sediment to a different location |
| deposition | The dropping off of bits of rock and soil by a river as it flows |
| glacier | A large, moving mass of ice |
| moraine | A mass of rocks, clay, sand and gravel carried and deposited by a glacier |
| plate tectonics | The theory that Earth's crust is broken into puzzle pieces that float and move on hot molten rock |
| tsunami | A large wave caused by an underwater volcano or earthquake |
| earthquake | The shaking of Earth's surface caused by movement of rock in the crust |
| landslide | the sudden slide of rock or earth down the side of a hill or mountain |