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Chapter 7 Voc.
Science Vocabulary and Short Answers for Chapter 7
| Question | Answer |
|---|---|
| Weathering | Is the process that breaks down rock and other substances at Earth's surface |
| Erosion | Is the movement of rock particles by wind, water, ice, or gravity |
| Types of Weathering | Mechanical Weathering and Chemical Weathering |
| Agents of Mechanical Weathering | Thawing and freezing, release of pressure, growth of plants, actions of animals, and abrasion |
| Agents of Chemical Weathering | Water, Oxygen, Carbon Dioxide, Living Organisms, and Acid Rain. (Remember Wacla) |
| Parts of the Soil | Horizon A or Topsoil, Horizon B or Subsoil, Horizon C, and Bedrock |
| Organism that keeps soil fertile the best | Earthworms |
| Decomposers | Organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals |
| Three uses that change the land | Agriculture, Development, and Mining |
| Soil methods for conservation | 1) Strip Cropping, or alternating tall and short crops 2) Terracing, or Steep hillsides built up into a series of steps 3) Conservation Plowing, or breaking only the subsoil 4) Windbreaks, or planting trees along the edges of fields |
| Methods of Disposal | Landfills, which takes 56% of waste. Recycling, which takes 27% of waste. Incineration, which takes 17% of waste |
| Plants can cause both chemical and mechanical weathering because it can break a huge boulder by growing underneath it, and it can dissolve rocks around it's roots by releasing weak chemicals that dissolve them | Describe and Explain how plants can cause both chemical and mechanical weathering |
Created by:
Crhee22
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