1. Soil is weathered bedrock sitting on top of the bedrock
Soil…What is it?
Dig down and this is what you might see!
Notice the layers…
Has he dug down to bedrock yet?
Soil is weathered bedrock sitting on top of the bedrock

2. Soil…how does it form? Start with bedrock
Weathering and biologic activity break down bedrock, starting at surface
Layers of sediments form called _________
Horizons
Dig down far enough and still hit_________
Bedrock

3. Soil... Not just dirt! BEDROCK Soil Profile Horizons O Organic A
Topsoil B
Subsoil C
Partly weathered bedrock
BEDROCK
What’s down here?

4. Soil... For growing stuff! BEDROCK Soil Profile O and A Horizons
are fertile
B and C subsoil not fertile
Nothin’ grows here!
BEDROCK

5. Soil... Different Types IF the SOIL Minerals MATCH BEDROCK
DO NOT MATCH BEDROCK
RESIDUAL
TRANSPORTED

6. Soil…in different climates
Cold, Dry Climates…
Soils are thin, not fertile
Not very much weathering
In Humid Climates
Soils are thicker, more fertile
More weathering
We have thick, fertile soils in Dutchess County.
Adirondacks has thin, infertile soils

7. Soils... Not just dirt! 1. Describe how soil forms
2. Layers that form in the soil are called…
3. Which soil horizon is best for growing plants?
4. What type of climate would have the thinnest soils? Explain..