Studying Earth systems, energy transfer, and the scientific method for fourth grade students.
The land on Earth is always changing! Erosion happens when wind, water, or ice moves rocks and soil from one place to another.
Erosion shapes our landscapes, creates new landforms, and can also cause problems like loss of farmland.
People plant trees and use special walls to protect soil and keep land healthy.
A river cutting a deep valley over thousands of years.
Strong winds forming sand dunes in a desert.
Erosion changes Earth's surface by moving rocks and soil with wind, water, or ice.