Term
|
Definition
| the decayed plants and animals in soil; works like a sponge to soak up rainwater. |
|
|
Term
|
Definition
| is made of bits of rock, minerals, plant and animal remains, and living things. It also contains water and air. |
|
|
Term
| How many layers of soil are there? |
|
Definition
|
|
Term
| What are the layers of soil? |
|
Definition
| topsoil, subsoil and bedrock |
|
|
Term
|
Definition
| the top layer of soil; dark and has the most humus and minerals. |
|
|
Term
|
Definition
| this soil layer is lighter in color and has less humus. |
|
|
Term
|
Definition
| solid rock layer of soil. |
|
|
Term
|
Definition
| Soil is a natural resource. |
|
|
Term
| What is a natural resource? |
|
Definition
| a material on Earth that is necessary or useful to people. |
|
|
Term
| Name four things that would happen if there was no soil. |
|
Definition
– most plants would not grow.
– organisms on land would not have food to eat.
– there would be no wood to build houses or burn for heat.
– there would be no cotton clothing. |
|
|
