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

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

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

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

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.

Celebrate Earth Day by making colorful animal sculptures using recycled materials from around the house in this 3rd grade arts and crafts activity.

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.

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

Help your child organize her jewelry or hair bands with this pretty holder made from recycled materials. The finished holder also makes a great gift!

Fly into some rainy day fun with a cardboard airplane project. Making paper airplanes is fun, but you can add a new twist by using recycled materials instead.

Make your own wrapping paper with some materials from around the house. Try to make your own wrapping paper this year for a unique presentation for your gifts.

Who says you have to buy your toys at the toy store? In this activity, you can plan and build a pretend play city entirely out of recycled materials.

This science fair project examines how seeds hitchhike on animals and clothing.

Your fourth grader will hone his fine motor skills and learn to follow directions as he creates this recycled angel tree topper out of an ordinary soda bottle!

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Make a kaleidoscope at home to teach your child about the color spectrum and mirror science.

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

This science fair project idea examines which type of insulation holds in the most heat.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Design and throw a boomerang in this exciting craft project!

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Make a bouquet of colorful duct tape flowers in this hands-on spring craft.