Engage students in the study of the ocean and saltwater with these activities. Students will see that saltwater has different physical properties than freshwater - mainly density. This lesson can serve as a springboard into other...

Lesson plan shows students that salt water can replace fresh water in a well along the shoreline.

Disappearing Wetlands: Explore the relationship between mass, density, and salinity by measuring the mass and volume of four saltwater solutions of increasing strength.

Students build a saltwater circuit, which is an electrical circuit that uses saltwater as part of the circuit. Students investigate the conductivity of saltwater, and develop an understanding of how the amount of salt in a solution...

Travel with your students on a virtual field trip to learn about saltwater marshes!

Realize that there is more in ocean water than just salt. Find out about the salinity of water and how changes in salinity may affect organisms living in the water.

Here you can learn all about salt water crocodiles. What makes them different than fresh water crocodiles? Where are they found? What kind of habitat do they live in?

Explore circuits and the flow of electricity. Create a saltwater tester using a battery and electrical buzzer.

Explore saltwater ecosystems around Earth. Learn about oceans, estuaries, shores, and more.

This site contains an experiment on how to find out which has more density -- freshwater or saltwater.

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...

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...

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.

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...

An image of the Florida State Saltwater Mammal.

An image of the Florida State Saltwater Mammal.

An image of the Florida State Saltwater Mammal.

An image of the Florida State Saltwater Mammal.

An image of the New Hampshire State Saltwater Game Fish.

An image of the New Hampshire State Saltwater Game Fish.

An image of the New Hampshire State Saltwater Game Fish.

An image of the New Hampshire State Saltwater Game Fish.

An image of the New Hampshire State Saltwater Game Fish.

An image of the New Hampshire State Saltwater Game Fish.