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Water Cycle
Water Cycle & Natural Resources
| Term | Definition |
|---|---|
| water cycle | a continuous cycle of water on Earth |
| sun | source of energy that drives the water cycle |
| evaporation | the heating up of liquid water into water vapor |
| condensation | the cooling of water vapor back into a liquid |
| precipitation | rain, snow, sleet & hail |
| accumulation | the process where water gathers in large bodies like oceans, lakes, rivers, and groundwater |
| runoff | water that runs off the land into other areas |
| groundwater | water that falls on land as precipitation and soaks into the ground to fill tiny spaces between rocks and soil |
| percolation | when water soaks deep into the ground moving downward through cracks and spaces in the soil and rock |
| water vapor | water in its gas form which is invisible and floats in the air |
| conservation | the process of using materials and natural resources wisely |
| natural resource | a material found in nature that can be used by people |
| renewable resources | natural resources that can be replenished naturally over a short time meaning they won't run out |
| nonrenewable resources | natural resources that exist in limited supplies and take millions of years to form so they can be used up and won't be replaced quickly |
| reduce | to use less of something |
| reuse | to use something multiple times |
| recycle | to create new materials out of old materials |
| pollution | the introduction of harmful materials into the environment |
| biofuel | a special type of fuel made from plants or animal waste (renewable resource) |
| fossil fuel | energy sources like coal, oil, and natural gas that formed over millions of years from the buried remains of ancient plants and animals (nonrenewable resources) |
| petroleum | a naturally occurring, dark, oily liquid found deep underground (a type of fossil fuel) |