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15 Cards in this Set

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  • Back
Soil is made of ______,______, ________, and decayed _________and_______
rock, air, water
plants and animals
What are the four components of soil?
clay, silt, humus, and rock
________ soil is loose and easy to dig
Sandy
What type of soil doesn't hold water?
Sandy
_______ is the changing of the earth's surface caused by water, wind, the sun, or living things.
Weathering
_______ feels smooth andd powdery.
Silt
______ soil is made up of tiny grains that are very close together.
Clay
_______ is another word for dirt
Soil
______ soil holds water well and contains lots of nutrients.
Clay
Tiny pieces of decayed plants and animals are found in ______.
humus
What is the top layer where plants grow called?
topsoil
What is the second layer of soil called?
subsoil
What is the third layer of soil called?
bedrock
________ are materials that plants need to live and grow.
Nutrients
_______ is the carrying away of the weathered earth's surface.
Erosion