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Science Vocab 2b

Science Vocabulary 2b

QuestionAnswer
Soil Loose material on the surface of the earth
humus Decayed organic material found in soil
pedologist A scientist who studies soil
sand The largest particle of soil. It does not retain water in the soil.
clay The smallest particle of soil: hold nutrients and water but does not have room for air.
silt A tiny particle of soil that allows water and air to mix in the soil.
texture The amount of each kind of particle in a soil sample.
loam Soil that has properties of all three soil particles: sand, soil, and clay.
horizon Layers of soil
topsoil The layer of soil in which plants germinate and where roots grow.
subsoil The layer of soil that contains nutrients from the humus that have washed down through the upper layers and weathered minerals from the parent rock below.
bedrock A layer underneath the soil that consists of unweathered rock: also called regolith.
Yes, Lacy Margaret Hurd Is your name on your paper and what is it?
Created by: lucybelle
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