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Earth's Changes ALL
| Term | Definition |
|---|---|
| rapid change | a change that happens quickly |
| slow change | a change that takes a long time to happen |
| process of formation | how something is formed |
| model | a picture, idea, or object that represents something else |
| sediment | broken down pieces of rock |
| weathering | rock is BROKEN down by wind, water, or ice to create sediment |
| erosion | the MOVEMENT of weathered material by wind, water, or ice |
| deposition | weathered & eroded sediment is DROPPED off by wind, water, or ice |
| compaction | pressure SQUEEZES rock, soil, and sediment |
| cementation | process of BINDING and HARDENING sediments into hard rock |
| sedimentary rock | a rock that forms from compressed and cemented layers of sediment |
| organism | a living thing |
| decomposition | process by which plants & animals DECAY or rot |
| fossil fuels | fuels formed over millions of years from the remains of dead plants and animals |
| coal | solid fossil fuel made from plants in a wet, swampy area |
| oil | liquid fossil fuel made from the remains of ocean plants & animals |
| petroleum | another word for oil |
| natural gas | gaseous fossil fuel made from the remains of ocean plants & animals |
| landform | a physical structure on Earth that occurs naturally |
| canyon | a landform caused by a river weathering & eroding rock |
| delta | a landform caused by deposition at the mouth of a river |
| u-shaped valley | a landform caused by a glacier (ice) weathering & eroding rock |
| v-shaped valley | a landform caused by a river weathering & eroding rock |
| sand dune | a landform caused by wind eroding & depositing sand into a pile |
| glacier | a large chunk of ice |
| ice wedging | a type of weathering in which water falls into a crack in a rock, freezes, expands, and breaks the rock |
| moraine | rock and sediment left behind by a glacier |
| natural resource | materials found in nature that are used by living things |
| nonrenewable resource | resources that take millions of years to replace |
| renewable resource | resources that can be replaced in a short period of time |
| alternative energy | any form of energy that doesn't use up a natural resource |
| solar energy | energy from the sun |
| wind energy | energy produced from wind turbines spinning |
| hydroelectric energy | energy produced from water spinning a turbine inside a dam |
| biofuels | energy produced from burning dead plants |
| geothermal energy | energy produced from heat from inside Earth creating steam that spins a turbine |
Created by:
Kuck