| A | B |
| landforms | natural features on earth's surface |
| 5 landform examples | plains, plateaus, peninsulas, valleys, canyons |
| weathering | the process of rocks in earth's crust slowly being broken into smaller pieces |
| 4 causes of weathering | water flowing, ice expanding, temperature changes, plants growing in cracks |
| erosion | water, ice gravity, and wind working together to move weathered pieces of rock |
| deposition | the laying down of pieces of Earth's surface |
| larger | size of pebbles that settle first during erosion |
| landslide | the rapid downhill movement of a large amount of rock and soil |
| 3 things that cause both erosion & deposition | landslides, avalanches, and heavy rains cause both |
| volcano | a landform that forms at a weak spot in the Earth's crust where magma is forced upward and reaches the surface |
| gas | causes magma beneath a volcano to rise to the surface |
| fault | a break or crack in rocks where Earth's crust can move |
| earthquake | the sudden movement that causes Earth's crust to shake |
| epicenter | the point on Earth's surface that is directly above the focus |
| focus | the place underground where the plates start to move and the earthquake begins |
| earthquake | When underground rock suddenly shifts and Earth's crust shakes |
| volcano | hot magma moves upward and erupts from this |
| epicenter | the place on Earth's surface directly above the focus of an earthquake |
| landslide | rapid downhill movement of rock and soil caused by gravity |
| erosion | an example of this is when glaciers drag rock and soil |
| weathering | occurs when acid in rainwater changes rock |
| deposition | sand dunes may result from this by wind |
| landform | a plateau is one kind |
| fault | many earthquakes are casued by plate movement along this |