NOAA
Noaa: Estuaries 101 Curriculum: Observing Estuaries:
Students investigate landforms and features associated with estuaries by taking a journey down a river to an estuary system where the river empties into the Gulf of Mexico near Weeks Bay. They will use Google Maps and other resources to...
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.