Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

In this investigation, an oil spill is simulated in a jar to observe the damage that oil spills have on the ocean and ocean life.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This science fair project idea compares biodiversity between drops of water.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.