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5thGr Earth Science
Weathering and Erosion
| Term | Definition |
|---|---|
| Landform | Natural feature of the Earth's surface |
| Constructive process | Force that builds things up |
| Destructive process | Force that breaks things down or destroys |
| Weathering | Process that wears down or breaks down rocks into sediments |
| Erosion | The movement of sediment from one place to another |
| Deposition | Leaving or dropping off sediment which adds to a landform |
| Delta | Flat area at the mouth of a river where sediment has been deposited |
| Sand dune | A pile of sand that has been built up by erosion and deposition |
| Glacier | Slow moving flow of ice and snow that can create valleys |
| Fault | A fracture or break in the Earth's crust |
| Earthquake | When Earth's tectonic plates move or grind against each other and it releases stress, or energy, which causes vibration |
| Seismograph | A tool that geologists use to measure the size of an earthquake |
| Levee | A landform or structure that prevents flooding |
| Dam | A barrier that stops the flow of a river |
| Jetty | A structure that is built from the land out into the water |
| Sinkhole | Occurs when rock below the surface of the ground is dissolved by water |