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21 Cards in this Set
- Front
- Back
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5 types of mechanical weathering
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freezing and thawing (when water freezes it causes the crack in the rock to get bigger). Release of pressure (when the pressure of a rock is reduced it causes the surface of the rock to crack. Plant groath (the roots of plants will break apart rocks). Actions of animals (animals that burrow in the round loosen and break rocks in the soil). Abrasion (rock particles can wear away exposed rock surfaces). FRAPA
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5 types of chemical weathering
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aCarbon Dioxide (a gas that dissolves in the rain and forms carbonic acid that weathers marble and limestone). Oxygen (causes things to rust). Water (Water weathers rock by dissolving it). Living Organisms (roots of a plant produce acids that dissolve a rock). Acid Rain (chemicals in the air and mixed with rain produce acid rain). COWLA
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How does climate effect the rate of weathering?
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When its wet chemical and mechanical happen faster. When its wet and hot chemical occurs more quickly.
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What are the major findings of the weathering lab?
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Not sure
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What are the soil types?
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Tundra Soils, Northern forest soils, Prarie soils, mountian soils, southern forest soils, desert soils, and tropical soils. Soil type is based on the climate and plant type.
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Soil Composition
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This is a mixture if rick particles, minerals, decayed organic material,water and air.
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What is the difference between loam and topsoil?
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Topsoil is on the surface and loam is in the topsoil
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Name and describe the soil horizons
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C-Bedrock. A-organic soil. B-mixure of soil and bedrock
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What is the difference between porous and permiable?
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Porous- spunge. Permiabe-flows around
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Relationship between litter, humus, and decomposers.
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litter- leftover leaves from trees and plants. decomposers- break down remains of dead (fungi, bachteria, earthworms, animals). Humus- rich soil made from litter that was decomposed
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types of soil conservation
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crop rotation, conservation plowing, contour plowing
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runoff
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water that flows over the ground surface
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river/stream
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channel along which water is continaully flowing
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tributary
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stream or river leads into a larger river
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flood plain
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flat wide area of land near a river
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watershed
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not sure
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meander
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looplike bend in the coarce of a river
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delta
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when a river flows into a river or lake
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energy
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the ability to do work
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kinetic energy
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the energy an object has dur to its motion (rubber band)
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potential energy
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stored up energy ready to be used later
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