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.

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

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.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

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.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

Re-purpose a tin can into a pretty compost bucket for your family's kitchen counter and learn about the science and fun of recycling and renewing objects.

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!

Kids can put old magazines and unwanted clothing to good use by creating an Earth Day-themed multimedia collage in this eco-friendly arts and crafts activity.

Your child can twist and turn their way to creating a freestanding wire form! When they're done they can position and display their small statue wherever they want.

Here's a pressed leaf card project that puts science and writing together for your second grader.

Celebrate Earth Day, or any day, by recycling an old CD and make a colorful, decorative fish!

Make your own recycling game that helps teach your child what can and should be recycled.