PBS
Pbs Teachers: Saltwater Tester
Explore circuits and the flow of electricity. Create a saltwater tester using a battery and electrical buzzer.
PBS
Nh Pbs: Nature Works: Marine Communities
Explore saltwater ecosystems around Earth. Learn about oceans, estuaries, shores, and more.
US Navy
Onr: Saltwater vs. Freshwater, Which Is Denser?
This site contains an experiment on how to find out which has more density -- freshwater or saltwater.
Science Buddies
Science Buddies: Solar Powered Water Desalination
Here is a cool project about making fresh water from salt water using solar power, also known as water desalination. The apparatus is made from readily available materials, and the power source is free. As an inventive thinker, you will...
TeachEngineering
Teach Engineering: One World Ocean
In this activity, students learn about ocean currents and the difference between salt and fresh water. They use colored ice cubes to see how cold and warm water mix and how this mixing causes currents. Also, students learn how surface...
University of Utah
University of Utah: Genetics Science Learning Center: Stickleback Evolution
Compare the freshwater stickleback with its saltwater relative and trace the evolutionary changes of the fish. Includes a lecture by Dr. David Kingley, as well as an animation showing the evolution of the stickleback in an Alaskan lake.
Science Buddies
Science Buddies: How Salty Is the Sea?
Have you ever been swimming at the beach and gotten some water in your mouth by mistake? Then you know that the ocean is very salty. Bodies of freshwater also contain some salt, but much less compared to oceans. In this experiment you...
Curated OER
New Hampshire State Saltwater Game Fish
An image of the New Hampshire State Saltwater Game Fish.
Curated OER
New Hampshire State Saltwater Game Fish
An image of the New Hampshire State Saltwater Game Fish.
Curated OER
New Hampshire State Saltwater Game Fish
An image of the New Hampshire State Saltwater Game Fish.
Curated OER
New Hampshire State Saltwater Game Fish
An image of the New Hampshire State Saltwater Game Fish.
Curated OER
New Hampshire State Saltwater Game Fish
An image of the New Hampshire State Saltwater Game Fish.
Curated OER
New Hampshire State Saltwater Game Fish
An image of the New Hampshire State Saltwater Game Fish.
Curated OER
Clip Art by Phillip Martin: State Salt Water Fish of Alabama Fighting Tarpon
A clipart illustration by Phillip Martin titled "State Salt Water Fish of Alabama - Fighting Tarpon."
Curated OER
Clip Art by Phillip Martin: Florida State Saltwater Animal Porpoise
A clipart illustration by Phillip Martin titled "Florida State Saltwater Animal -- Porpoise."
Curated OER
Clip Art by Phillip Martin: Louisiana State Saltwater Fish Spotted Sea Trout
A clipart illustration by Phillip Martin titled "Louisiana State Saltwater Fish - Spotted Sea Trout."
US Geological Survey
Usgs: Earth's Water: Lakes and Reservoirs
The USGS reviews the differences between lakes and reservoirs. They discuss the history of freshwater and salt water lakes. Click Home to access the site in Spanish.
Scholastic
Scholastic: Study Jams! Science: Ecosystems: Aquatic Ecosystems
A video and a short multiple-choice quiz on the topic of aquatic ecosystems. It discusses the difference between freshwater and saltwater ecosystems, then explains what the three ecozones are in a marine ecosystem.
Geography 4 kids
Geography4 kids.com: Seasonal Wetlands
Identify the four types of seasonal wetlands found across the earth. There are fresh water and salt water marshes, bogs, and swamps.
The BIG zoo
The Big Zoo: Saltwater Crocodile
Virtual zoo site provides some fascinating facts on this largest living reptile. Contains a physical description as well as information on their habitat, diet, social structure and birth and offspring.
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