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1. _____the breaking of minerals unevenly (minerals) 2.. _____ type of mechanical weathering occurs when water contracts and expands in rocks (weathering)

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Presentation on theme: "1. _____the breaking of minerals unevenly (minerals) 2.. _____ type of mechanical weathering occurs when water contracts and expands in rocks (weathering)"— Presentation transcript:

1 1. _____the breaking of minerals unevenly (minerals) 2.. _____ type of mechanical weathering occurs when water contracts and expands in rocks (weathering) 3.. _____process builds up land (erosion and deposition) 4.. _____ extremely slow movement of material downslope (gravity) 5.. _____ What do glaciers create? (glaciers) __

2 1. What is soil? 2. What are the composition of soil? 3. What is the parent rock? 4. What affects the formation of soil?

3 1. Soil is made of weathered rock (small mineral fragments) and organic matter. 1. Soil is made of weathered rock (small mineral fragments) and organic matter.

4 2. Components- 2. Components-  Weathered Rock-sand, silt, clay Organic matter- living or once living materials Ex humus (decayed plant and animal) Organic matter- living or once living materials Ex humus (decayed plant and animal) Other-water and air Other-water and air

5 3. The parent rock is the source of the soil. 3. The parent rock is the source of the soil.

6 4. Factors that affect soil formation 4. Factors that affect soil formation Climate-soil forms more quickly in warm, wet environments Climate-soil forms more quickly in warm, wet environments Parent rock-some rocks weather faster than others Parent rock-some rocks weather faster than others Organisms-soil forms more quickly with plants, animals, bacteria, and fungi Organisms-soil forms more quickly with plants, animals, bacteria, and fungi Topography-more quickly soil forms on steep slopes and on top of other soil Topography-more quickly soil forms on steep slopes and on top of other soil Time-takes thousand or million of years to form


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