Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

How do organic materials become soil? This science experiment measures what materials biodegrade.

A scarecrow Halloween craft featuring recycled materials.

Celebrate the blooming season with your kid by showing him how to make a magical spring mosaic out of all natural materials!

Create a self-portrait from natural materials in this collage craft activity!

Make your own Matryoshka out of simple craft materials in this easy how-to!

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Thiscuddly stuffed animal is made from just a few materials, including your recycled stockings.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Instead of buying new sunglasses this summer, why not use recycled materials to make some of your own?

Using simple materials, children will create a movement card game that the whole family can play together.

Create a one-of-a-kind lunchbox with your second grader using recycled materials and some down home ingenuity!

Give some of your local ladybugs a warm place to stay for the winter by making a ladybug home with recycled materials.

Help your second grader craft some lovely, personalized Valentine's Day cards--out of kitchen materials!

This homemade pom-pom garland requires very few materials and instantly brightens up a room with Easter-themed pastels.

Recycle old materials to create a fun, brain-teasing maze toy that also strengthens your child's math reasoning skills.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

Made entirely out of recycled materials, this handmade decoration is a great way to spruce up a dresser, bookshelf, or the living room mantle.

Help your child use recycled materials, a little imagination and some writing skills to build his very own recycled creature.

Help your child use an old water bottle and a few other household materials to make her own eco-friendly pal!

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

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

Teaching your child some basic words in Spanish is a breeze at home, with this simple and fun activity that doesn't require special educational materials.

This adventurous art project will send kids on a scavenger hunt for fall materials they can use in their artwork. This craft also teaches kids about seasons.

This rainbow collage activity is a great way to practice using different materials to create texture. The completed craft is sure to brighten up any space.

Help your child rocket off for some high-flying fun with a jet pack you make from recycled materials and a few odds and ends.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

Make going back to school a fun time! Let your child create her own pencil topper creatures using everyday materials and a Styrofoam ball.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.