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Soil Composition SSS
Act 5 and Act 6
Question | Answer |
---|---|
What is weathered rock? | Weather breaks down rock into very tiny pieces that makes up soil. |
Name the type of soil that has the largest pieces of weathered rock. | Sand |
Name the type of soil that has the medium sized pieces of weathered rock. | Silt |
Name the type of soil that has the smallest sized pieces of weathered rock. | Clay |
The wearing down of rocks by natural forces is called... | weathering |
What are the two main ingredients in soils? | Weathered Rock and Organic Matter |
Which type of soil will water flow through the fastest? | Sand |
Which type of soil will hold the water the longest? | Clay |
Which type of soil will probably only need water every 3 days or so? | Silt |
Where does organic matter come from? | decomposed plants and animals |
What does decomposed mean? | living things that die and then are broken down into their smallest parts. |
What are nutrients? | chemicals that can dissolve in water and be absorbed by plants. |
Why do plants need nutrients from the soil? | So that they can grow. |
What is the cycle of nutrients? | How a decomposed plants leaves nutrients in the soil that helps another plant grow. |
Soil can be found in layers. What is the top layer? | Top soil |
What is special about the top layer of soil? | Contains most of the organic matter. |
What is the 2nd layer of soil? | Subsoil |
What is the 3rd layer of soil? | Parent material |
What is the bottom layer of soil? | Bedrock |
What are we testing when we identify the consistence of a soil? | How easily the clumps are broken apart. |
What do we mean when we say the consistence is friable? | If the soil breaks apart with a small amount of pressure from one finger. |
What do we mean when we way the consistence is firm? | If the soil breaks apart with a lot of pressure from two fingers. |
When are we testing when we identify the texture of soil? | Texture describes the size of the particles. |
What three things would we feel when we rub the soils between our fingers to determine texture? | Grainy: feels gritty Silky: feels powdery Sticky: feels gummy |
Which soil would be better for the school garden? the soil from Phoenix AZ, or the soil from Orlando, Fl? | Orlando Fl. |