Curated OER
Life Giving Rivers
Students examine the world's rivers in this six lessons unit which mingles science with social studies. The dynamic forces that create erosion in nature are also seen as habitats and ecosystems that are affected by environmental and man...
CK-12 Foundation
Ck 12: Fourth Grade: Earth Science: Erosion and Deposition by Flowing Water
[Free Registration/Login may be required to access all resource tools.] Discusses how flowing water causes erosion; describes how runoff, streams, and rivers change Earth's surface; and identifies features caused by groundwater erosion.