Transcript 3rd Grade Soil Unit - Fulton County Schools

rd
3
Grade Soil Unit
Mrs. Thornburg’s Picture Vocabulary
What do we call the loose material in which
plants grow in the upper layer of the Earth?
_____________________________
Soil
What do we call the part of the soil made up
of the decayed parts of once-living things?
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Humus
What do we call a rich type of
topsoil with lots of humus?
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Loam
What do we call a type of soil with very
small grains that trap a lot of water?
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Clay
What do we call solid rock under
soil?
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Bedrock
What do we call the layer under the
topsoil?
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Subsoil
What do we call the top layer of soil? It is made up
of the smallest grains, has the most humus and is
the richest layer of soil (most nutrients).
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Topsoil
Label the layers of earth.
1. ___________________
1.
2.
3.
2. ___________________
3. ___________________
4. ___________________
4.
Label the layers of earth.
1. Humus
1.
2.
3.
2. Topsoil
3. Subsoil
4. Bedrock
4.