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Soil is made up of ___parts.
1.
2.
3.
4.
Humus is ___________.
_________________ is the top layer of soil.
_____________ is below topsoil.
_________________ is the bottom layer.
_______________________ gives soil its color.
Different soils contain different ___________.
Different soils have different _________ and
__________.
Soils that have a lot of humus are _____ or
_____.
Because they are dark, they _____________.
Soils with less humus will be ___________ in
color. The organic matter makes humus ____.
Grain Size:
Different soils have different ____________.
Grain size affects the ________ (how it feels).
Small grains stick __________ and are
__________. They may have a _________
texture.
Large grained soils are ________. They let
________ move through them quickly.
They have good drainage.
Smaller grains do not let ___ move through
them quickly. They have poor drainage (water
does not drain out). Think about your bathtub.
Has it ever been stopped up? Did the water
flow out? How about your toilet? What
happens when that water does not flow out?
Drainage: Grain ______ affects drainage.
Drainage describes how ______ moves into and
through the soil. Larger grain sizes let ________
move through _______. They have good
drainage. ______ grain sizes do not let water
move through them quickly. They have poor
drainage.
3 Types of Soil:
Clay- ________ grains feels _____. Georgia is
known for its red clay. They weathered
_________ gives Georgia’s clay its red color.
Loam – Topsoil, rich in _______, ________ and
________. It is the type of soil best for plants.
Georgia’s Coastal Plains have many _______
because of the rich loam found there.
Sand: has a wide range of grain sizes. Very fine
sand can feel _______. Very granular sand is
_____. Sand has good _______.