click below
click below
Normal Size Small Size show me how
Earth Changes
| Term | Definition |
|---|---|
| Landforms | a natural feature of Earth's surface |
| Erosion | the carrying process of wind, water or ice moving small pieces of rock, soil, and sand from one to another |
| Glacier | a large body of ice moving slowly, down a slope or valley |
| Delta | a triangle of sand and soil deposited at the mouth of a river where it meets the ocean |
| Canyon | a deep valley with steep sides carved out by a river |
| V- shaped valley | a long area of low land between mountains and hills caused by the river |
| renewable resource | a resource that can be used repeatedly and does not run out because it is naturally replaced ( wind, water, solar, geothermal and biomass energy |
| Non- renewable resource | a natural resource that cannot be replaced in a hum life time ( natural gas, coal etc |
| U-shaped valley | a valley formed when a glacier moves though |
| Weathering | is the breaking down of landforms by natural forces |
| Sand dune | a hill of sand formed by wind often located near an ocean or desert |
| Compaction | the process through which layers of sediment are squeezed together by the weight of sediment above, REMOVING WATER AND AIR from space between particles of sediment |
| Moriane | a ridge-like mound formed by glacial debris left behind by a glacier |
| Peat | formed by the decomposition of plants and is the first step in the formation of coal |
| Marine organisms | Plant and animal life found in the ocean |
| Rapid Changes | quick changes to Earth's surface. Example: landslide, Earthquake |
| Natural resources | materials or substances such as minerals, forests, animals, water, and fertile land that occurs in nature |
| Cementation | the process through which loose sediment to stuck together and hardened by minerals |
| Decay | the process of rotting ( Alphas always is named this on food chains) |
| Deposition | the dropping of sediment in a new location |
| Fossil fuels | a source of energy made from the remains of ancient, once living things |
| sediment | weathered particles of soil or rock |
| sedimentary rock | a rock that forms when sediment is pressed together in layers |
| striation | scratches of grooves on a rock surface |
| coal | a hard black or brown substance that is found in Earth and is burned as a non- renewable fuel |
| Oil ( petroleum) | a liquid found beneath Earth's surface and is burned as a non-renewable fuel |
| Natural Gas | a mixture of gasses formed by intense heat trapped within Earth's surface and is burned as a non-renewable fuel |
| Alternative Energy | energy generated in ways that do not deplete natural resources or harm the environment especially by avoiding the use of fossil fuels and nuclear power |