Use this great no-bake recipe to save energy and keep cool.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Your child can turn cookie dough into a big pile of colorful painted fall leaves ready for eating!

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!