Major Understandings

MST4.E.PS2.1d: Erosion and deposition result from the interaction among air, water, and land.

• interaction between air and water breaks down earth materials
• pieces of earth material may be moved by air, water, wind, and gravity
• pieces of earth material will settle or deposit on land or in the water in different places
• soil is composed of broken-down pieces of living and nonliving earth material