5 Written questions
5 Matching questions
- a earth materials deposited by erosion
- b the loose layer of dead plant leaves and stems on the surface of the soil
- c Dark-colored organic material in soil.
- d A measure of how well soil supports plant growth.
- e Mixture of humus, clay, and other minerals that forms the crumbly, topmost layer of soil.
5 Multiple choice questions
- The layer of soil that differs in color and texture from the layers above or below it.
- Soil organism that breaks down the remains of organisms and digests them.
- The layer of soil beneath the topsoil that contains mostly clay and other minerals.
- wedges of ice in rocks widen and deepen cracks
- the loose, weathered material on Earth's surface in which plants can grow
5 True/False questions
acid rain → the grinding away of rock by other rock particles carried in water, ice, or wind
weathering → the loose layer of dead plant leaves and stems on the surface of the soil
abrasion → The removal of rock particles by wind, water, ice, or gravity
bedrock → earth materials deposited by erosion
oxidation → a chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust