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Ch. 5: Earth's Res.
Lessons 1 - 4
| Term | Definition |
|---|---|
| crust | the thin layer of rock that covers Earth's surface |
| landform | a natural land feature on Earth's surface |
| weathering | process of rocks slowly being broken into smaller pieces |
| humus | a material in soil made up of decayed plants and animals |
| texture | the feel of soil based on the size of its particles |
| loam | a soil mixture of sand, silt, clay, humus, air, and water |
| erosion | the process of carrying away weathered bits of rock |
| deposition | the laying down and piling up of pieces of rock that have been weathered and eroded |
| conservation | using only what we need as carefully as possible |
| renewable resource | a resource that can be replaced |
| nonrenewable resource | a resource that is used up faster than it can be replaced |
| reclamation | restoring land after it has been used |
| pollution | the waste from products made or used by people |
| Palo Duro Canyon | the Grand Canyon of Texas |
| retain | the ability to hold water |
| chemical weathering | chemicals cause rocks to change into different materials and break down |
| physical weathering | rocks are broken down into the same kind of rock |
| natural resources | supplies for people found in nature |
| solar energy | using energy from the sun |
| fossil fuel | burned to provide energy from organisms that lived a long time ago |
| ore | a rock that is rich in valuable minerals |
Created by:
wces4
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