Other
Florida's Springs: Protecting Nature's Gems
Explore Florida's springs, some of the world's largest freshwater springs. Here is a well-done site that includes information about threats to these unique springs, natural and cultural history, Florida wildlife, underwater cave systems,...
![Water Resources Programme: Chemistry of Carbonic Acid in Water [Pdf] Handout](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Water Resources Programme: Chemistry of Carbonic Acid in Water [Pdf] Handout")
Other
Water Resources Programme: Chemistry of Carbonic Acid in Water [Pdf]
A detailed look at carbon isotopic composition isotope and carbonic acid in water. Sections include: "Carbonic Acid Equilibria," "Carbonic Acid Concentrations," and "Closed System, Mixing of Freshwater and Seawater."
Other
Alberta Riparian Habitat Management Society: What Is Riparian?
Learn what riparian areas are, why they are important for the health of standing and moving fresh water, how to assess their health, and how to take care of them.
Untamed Science
Untamed Science: Biology: World Biomes: Estuaries Biome
Make learning about Earth's biomes fun and easy with video clips, photographs, and diagrams. Learn about estuaries, the water environments formed where freshwater from rivers or streams mix salt ocean water. [6:38]
Science Education Resource Center at Carleton College
Serc: Lab 2: Anatomy of Coral
A lab experiment in a series of experiments that investigates coral. In this activity, students will use a microscope to examine the feeding behavior of a hydra, a fresh-water relative of coral. They will also observe the characteristic...
Science Education Resource Center at Carleton College
Serc: Lab 6: Drying of the American West
A lab experiment in a series of experiments that explores droughts. This experiment is presented as a case study for the drought conditions in the Colorado River. With this case study, students study the decrease of fresh water...
TeachEngineering
Teach Engineering: Introduction to Water Chemistry
Learners are presented with examples of the types of problems that environmental engineers solve, specifically focusing on water quality issues. Topics include the importance of clean water, the scarcity of fresh water, tap water...
National Geographic
National Geographic: Blog: Tiny Critter Has Seven Sexes
Meet the freshwater Tetrahymena, a single-celled creature that has seven possible sexes. This article presents information from recent research that helps explain how the creature reproduces and how its sex is determined.
PBS
Pbs Learning Media: North American Rivers and Their Widths
Rivers are essential to any society. They provide fresh water, recreation, and transportation. Students will analyze the distribution and relationship among North American rivers using this map from NASA. Background information and...
NOAA
Noaa: Estuaries 101 Curriculum: Salinity and Tides in York River
In this learning activity, students explore tides and salinity from tidal freshwater to high salinity conditions along the York River estuary. They learn how salinity changes with an incoming and outgoing tide, observing the dynamics of...
National Geographic
National Geographic: Education
Excellent, comprehensive site from National Geographic that provides lesson plans, activities, maps, and National Geography Standards. Teachers can find lesson plans based on grade and standard. Covers current issues, for example, global...
NOAA
Noaa: Estuaries 101 Curriculum: Nutrients in an Estuary
An overload of nutrients, called eutrophication (Greek for "good-nutrition"), can be harmful to estuaries. This phenomenon is also referred to as "over-enrichment," or "nutrient pollution". Students will investigate the range of...
Environmental Education for Kids
Eek!: Discover the Great Lakes
The Great Lakes include, Superior, Michigan, Huron, Erie and Ontario. These lakes form the largest fresh water system on earth and they are North America's greatest natural resource. Learn about the different lakes, how they formed,...
University of Florida
Florida Museum of Natural History: Bull Shark
The Florida Museum of Natural History presents an in-depth look at the bull shark that are found in both salt and fresh water. Learn about the taxonomy, common names, geographical distribution, conservation, habitat, food habits,...
Other
The Krib: Control of Red Algae in Freshwater Aquarium
Causes for red algae in the aquarium, eliminating red algae, the role of carbon dioxide, and algae eaters.
Curated OER
[Aerial View of a River Winding Through a Valley of Trees] [Picture] /
A broad selection of images featuring fresh water can be found on this site by Picture Australia. By clicking on individual images you'll find high quality photographs as well as a brief description.
Center for Innovation in Engineering and Science Education, Stevens Institute of Technology
Ciese Collaborative Projects: The Global Water Sampling Project
By testing your local water quality, you will be able to compare your results with students around the world. Register your class, and follow the project instructions. Additional teacher resources, references, and Ask-an-Expert sources...
Other
Crocodilian Species List
This website offers in-depth information and photos on all living crocodilian species.
BBC
Bbc Nature: Wildlife: Rivers and Streams
Take a close-up look at the world of rivers and streams and discover what lives there and where you can find them through pictures, news, descriptions, and external links.
BBC
Bbc Nature: Wildlife: Lakes and Ponds
Take a close-up look at the world of lakes and ponds and discover what lives and grows there through pictures, news, descriptions, and external links.
Tramline
Tramline: Salt Marshes Field Trip
Travel with your students on a virtual field trip to learn about saltwater marshes!
The Wild Classroom
The Wild Classroom: Biomes of the World: Streams and Rivers
Learn about stream and river ecosystems. Find out about plants, animals, adaptations, and conservation efforts.
The Wild Classroom
The Wild Classroom: Biomes of the World: Lakes and Ponds
Learn about lake and pond ecosystems. Find out about plants, animals, adaptations, and conservation efforts.
University of Florida
Florida Museum of Natural History: About the Florida Everglades
Everything you always wanted to know about the Everglades! The Florida Museum of Natural History offers great photos and good information on the many habitat types to be found there.