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SoilBy,
Mrs. Schuette’s Second Grade Class
2013
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TopsoilThe top layer of soil.
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Subsoil
The layer of soil below the topsoil.
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A mixture of decaying plants and animals in soil.
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GravelA part of soil made up of large sized
pieces (smaller than rock).
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Sand
A part of soil made up of medium sized grains (smaller than gravel).
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SiltA part of soil made up of small sized
grains (smaller than sand).
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Clay
A part of soil made up of very small grains.
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LoamA mixture of clay, silt, and sand.
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Compost
A mixture of decayed leaves, vegetables, and
other plant materials.
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OrganismA living thing.
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Decomposers
Tiny organisms in the soil that help break it down.
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DecayThe process by which
dead material breaks down (rot).
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Nutrients
Materials that plants and animals need to live and grow.
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OrganicAnything that does come
from living things.
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InorganicAnything that does not come
from living things.
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ErosionThe wearing away of rock or soil.
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WeatheringThe breaking down of rocks.
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The End!