| A | B |
|---|
| landform | a natural land shape or feature like hills, mountains, dunes |
| topography | All the different landforms in one place |
| sand dune | a hill made of sand blown and shaped by wind |
| mesa | a landform of rock shaped by wind |
| canyon | a deep valley with steep sides shaped by water |
| Georgia's geographic regions | nw Vally and ridge region, ne Blue Ridge region, center Piedmont region, se Coastal region |
| weathering | wind blows sand against a rock and breaks the rock into smaller pieces |
| erosion | the process of moving sediment by wind, water or ice |
| delta | new land at a river's mouth caused by deposition when the water slows down |
| sinkhole | water erodes soft rock under the surface until the surface caves in leaving a hole |
| sediment | soil and small pieces of rock |
| deposition | the process by which sediment drops out of water |
| plate | the pieces of the Earth's crust |
| earthquake | A sudden release of energy in Earth's crust. |
| epicenter | The point on Earth's surface right above the place where the energy is released |
| fault | a crack in the Earth's crust |
| magma | melted, or molten, rock beneath the Earth's surface |
| lava | magna that has reached the Earth's surface |
| volcano | a mountain made of lava, ash or other materials |
| jetty | a man-made structure shaped like a wall jutting out into the ocean. It is used to prevent erosion. |
| constructive forces | forces which build up landforms |
| destructive forces | forces which break down landforms |
| seismograph | a tool to measure earth quakes |
| shake table | a tool to measure how a building, road or bridge will act during an earthquake like force |
| levee | a wall of earth or concrete to hold back water |
| dam | a structure that stops the flow of water in a river or stream and can let out water slowly to prevent a flood |
