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Types of Rocks and Soils
Identify the characteristics of various types of rocks and soils.
10
Science
3rd Grade
04/11/2011

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Term
Sedimentary
Definition
Rock formed from consolidated clay sediments.
Term
Igneous
Definition
Rock formed by the solidification of molten magma.
Term
Metamorphic
Definition
Rock altered by pressure and heat.
Term
[image]
Definition
Term
[image]
Definition
Igneous
Term
Humus
Definition
Partially decomposed organic matter.
Term
Clay
Definition
A very fine-grained soil.
Term
Sand
Definition
A loose material consisting of grains of rock or coral.
Term
Silt
Definition
Mud or clay or small rocks deposited by a river or lake.
Term
[image]
Definition
Humus
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