Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Learn with makes water molecules work with this fun and easy science activity!

This science fair project idea explores alcoholic fermentation at work by making your own soda.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!