Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

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

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Your child can use leaves and grass to create his own outdoor art in celebration of Earth Day...all he needs are is the great outdoors and some creativity!

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.