| Weathering | ||
| #1 | True or False. The most important agent of chemical weathering is abrasion. | False |
| #2 | True or False. Plant roots that force cracks in rocks farther apart are an agent of mechanical weathering. | True |
| #3 | True or False. The gas that causes rock containing iron to oxidize is carbon dioxide. | False |
| #4 | True or False. Freezing and thawing are an example of chemical weathering. | False |
| #5 | True or False. Acid rain causes very rapid mechanical weathering. | False |
| More Weathering | ||
| #1 | Contour plowing is a practice that involves disturbing the plant cover as 'what' as possible? | Little |
| #2 | The loose, weathered material on Earth's surface is called what? | Soil |
| #3 | The rate of weathering depends on the type of rock and on the type of soil, climate, loam, or type of humus? | Climate |
| #4 | The grinding away of rock by other rock particles carried by wind, water, or ice is called what? | Abrasion |
| #5 | The process that breaks down rocks and other materials at Earth's surface is called what? | Weathering |
| Still More Weathering | ||
| #1 | Fungi, protists, bacteria, and worms are the main soil: weatherers, litter, materials, or decomposers? | Decomposers |
| #2 | The movement of rock particles by wind, water, ice, or gravity is called what? | Erosion |
| #3 | George Washington Carver taught what to Southern farmers in the early 1930's? | Methods of soil conservation |
| #4 | What kind of soil is best for growing plants? Clay soil, loam, humus, or sand soil | Loam |
| #5 | Plant roots do not cause 'what' of the soil? | oxidation |
| Soil Formation and Weathering | ||
| #1 | What is the process that breaks down rock and other substances at Earth's surface? | Weathering |
| #2 | The area of the Great Plains where wind erosion caused soil loss in the 1930's is called what? | Dust Bowl |
| #3 | This refers to the average weather conditions in the area. | climate |
| #4 | What is the dark colored material that forms as plant and animal remains decay? | Humus |
| #5 | What is it called when rock material is full of small holes and air pockets that allow water to enter? | Permeable |
| Soil and Weathering | ||
| #1 | What is the loose, weathered material on Earth's surface in which plants can grow? | topsoil |
| #2 | What is the management of soil to prevent to its destruction called? | Soil Conservsation |
| #3 | Plowing fields along the curves of a slope to prevent soil loss is what? | Contour Plowing |
| #4 | The layer of soil that differs in color and texture from the layers above or below it, is the what? | Soil Horizon |
| #5 | What is the method in which the dead stalks from the previous year's crop are left in the ground to hold the soil in place? | Conservation Plowing |
| Final Question | |
| What two factors could cause another Dust Bowl in the future? | severe drought and lack of soil conservation |