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.

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

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.

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.

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

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

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

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

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

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

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

Reuse and recycle your CDs by having your kid turn them into colorful, eye-popping suncatchers.

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

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.

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.

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.

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

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.

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

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.

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

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

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.

This activity is a great way to engage learners in Earth Day celebrations while cultivating skills around nonfiction comprehension and research writing.

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

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

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

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

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