| Question | Answer |
| What is erosion? | movement of rock particles by wind, water, ice, or gravity. |
| What is weathering? | process that breaks down rock and other substances at Earth's surface. |
| What is mechanical weathering? | type of weathering in which rock is physically broken into smaller pieces. |
| What are examples of mechanical weathering? | heating and cooling, abrasion, and freezing and thawing. |
| What is abrasion? | grinding away of rock by rock particles carried by water, ice, wind, and gravity. |
| What is ice wedging? | wedges of ice in rocks widen and deepen the cracks. |
| What is chemical weathering? | process of breaking down rocks through chemical changes. |
| What are examples of chemical weathering? | water, oxygen, carbon dioxide, and acid rain. |
| What does permeable mean? | material is full of tiny, connected air spaces that allows water to seep through. |
| Why is soil important? | everything that lives on land depends directly or indirectly on it. |
| When did the Dust Bowl take place? | the 1930s |
| Where did the Dust Bowl occur? | the Great Plains |
| What was the Dust Bowl? | plowing removed the grass from the Great Plains, exposing the soil. A drought lead to the topsoil drying out, which turned to dust and blew away. |
| What is soil conservation? | managing the soil to prevent its destruction. |
| What is contour plowing? | practice of plowing fields along the curves of a slope.
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| What is conservation plowing? | practice of disturbing the soil as little as possible, leaving dead weeds and stalks to return nutrients to the soil. |
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Cardio Block2anatomy
