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Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Discover how and which salt melts ice the quickest.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

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

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.