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Soils

Vocab for 4th Grade 4.7A Soils

TermDefinition
clay a fine-grained soil that retains water well
decomposition the breaking down of plant and animal remains by decomposers
gravel small, loose rock particles
humus organic matter found in soil
loam soil formed from equal parts of sand, silt, clay, and humus
nutrient a substance that is necessary for healthy growth and development
properties characteristics of matter
retain to keep or stay behind
silt a dust-like type of soil that retains water and circulates air well
soil a mixture of air, water, minerals, and organic matter
weathering the breaking down of larger rocks into smaller pieces called sediment
retention the ability to keep or hold
Created by: user-1766336
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