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3rd Grade Unit 4
| Definition | Term |
|---|---|
| the protection of something so that it is not wasted | Conservation |
| anything found in nature that can be used by humans | Natural Resource |
| the process of taking materials ready to be thrown away and converting (changing) them into reusable materials | Recycle |
| limit the amount used | Reduce |
| using an object or material more than once | Reuse |
| farming and ranching to produce food | Agriculture |
| to become different | Change |
| building structures, like homes, stores, hospitals, offices, roadways, and bridges | Construction |
| human destruction of natural forested areas | Deforestation |
| all of the living and nonliving components that interact in the same geographic area | Ecosystem |
| the movement of weathered material by wind, water, or ice | Erosion |
| materials changed by humans to create new products | Manmade Resources |
| making products from resources | Manufacturing |