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 activity, your kid has your permission to get his socks nice and filthy. In fact, it's a necessity, because those socks are going to make a garden.

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

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

In celebration of Earth Day, help your fifth grader write a poem from the Earth to its inhabitants.

Make edible amber fossils with your second grader to explore the fascinating world of science!

Help your child keep track of his pledges to be more environmentally friendly with a calendar made entirely out of recycled and reused materials!

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.

This Earth Day, create an adorable litter bug while learning about the importance of recycling.

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.

Get kids to celebrate Earth Day by designing their very own junk truck.

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

In this activity, learners will discover how to make a basic water filtration system using common materials found around the house or outside.

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

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

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

Celebrate Earth Day with a decorative tree made out of strictly reused and recycled materials.

What better way to raise awareness about the environment than with an eco-friendly Earth-themed party? Get your party started with this step-by-step guide.

Looking for a fun way to display photos? Give recycled objects a second life by turning them into a creative photo holder.

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

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!

Your child will have fun creating an Earth Day Plate that he can eat off as often as he likes!

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

Help your child make a recycling poster for your household and teach them how to take care of the environment!

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.

Encourage your child to take ownership of a plant by creating a care plan and following it over the course of a couple of weeks.

Teach children how to upcycle dried-out markers with this homemade paint-making activity!

Instead of painting a picture of a whale, let your preschooler make their own whale toy using a paper bag and some recycled art supplies.

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

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!