Earth Science Chapter 5 Lesson 2 Key Concept Builder

Soils
1.  Give two reasons why soils are important. • •			3.  List two properties of soils that plants depend on.  • •
Inorganic Parts		Organic Parts
4.  What is meant by the inorganic part of soils?		8.  What is meant by the organic part of soils?
5.  How are soil fragments classified?		9.  What are three examples of organic matter in soils? • • •
6.  What does the size of the inorganic matter in soils affect?		10.  How does organic matter form in soils? • •
7.  What are three examples of inorganic matter? • • •		11.  What important properties does organic matter give to soils? • • • •