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Rock and Soil Test
Use this stack to help you prepare for your soil and rock test.
| Question | Answer |
|---|---|
| What is humus? | Pieces of dead organic matter |
| What process breaks down rocks? | Weathering |
| What is soil made of? | Weathered rocks, decayed plants, and animal matter |
| What type of soil has large grains? | Sand |
| What type of soil has grains smaller than sand? | Silt |
| What type of soil has grains smaller than silt and sand? | Clay |
| What type of soil has the smallest grain? | Clay |
| What type of soil would you use to grow a garden? | Soil with lots of humus |
| What type of soil would be best for a playground? | Sandy soil |
| What are rocks made from? | Minerals |
| What is a mineral? | A solid nonliving substance found in nature |
| What is an igneous rock? | Forms when lava cools and hardens |
| What is a sedimentary rock? | Forms when rock is weathered into small bits and then packed into LAYERS |
| What is a metamorphic rock? | Forms when rock is exposed to heat and pressure and CHANGES, but does not melt |
| What are the properties of a mineral? | Luster, hardness, and color |
| What are the properties of soil? | Texture, content, and grain size |
| Which kind of soil is best for growing plants because it has essential nutrients from decaying plant and animal material? | humus |
| What kind of soil has a lot of space in between particles and feels gritty? | sand |
| What type of soil is sticky when wet and crumbly when dry? | clay |