Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Have fun making recycled paper using scraps of used paper in your home with this hands-on project.

Celebrate Earth Day by making a poster that encourages people not to litter.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

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!

It's a rare kid who doesn't like a sandbox. Next time you're out digging, build in some earth science, too.

This slightly messy, but tons-of-fun tactile activity will cement the idea of the land and water as pictured on maps in your young learner's mind.

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