[Free Registration/Login may be required to access all resource tools.] Aquatic biomes can be generally classified based on the amount of salt in the water. Freshwater biomes have less than 1% salt and are typical of ponds and lakes,...

Students build a model ecosystem to simulate the life and limiting factors of the Terrapin turtle.

Explore the habitats found where the Everglades run into the sea. A wonderful resource for learning about a unique part of the world.

Extensive article on mangroves. Covers classification, physical characteristics, life cycle, habitat, economic value, and natural and human threats to their survival.

A project-based collaborative unit of study that teaches students about watershed health using real-time geospatial technology. Students engage in outdoor field experiences while using twenty-first century learning skills.

NOAA Smart Buoys collect and transmit real-time weather, water conditions, and water quality data. Chesapeake Exploration gives teachers and their students unprecedented access to lessons designed around real-time observational data from...

Discover the types of water biomes.

[Free Registration/Login may be required to access all resource tools.] Features of streams and rivers.

[Free Registration/Login may be required to access all resource tools.] Features of streams and rivers.

A virtual clam dissection with high-resolution images of an intact clam, inner surface of valve, overview of clam with left valve removed, and overview of clam with left mantle removed, and more. (Click on the Microbial Life link.)