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In this science fair project you will make a model of a cell membrane using very simple material.

This versatile clay-like material hardens if left out and can be used for building sand castles, forts, and even school projects.

Invigorate your fourth grader's mind by helping him turn his room into a woven masterpiece using various lengths of material.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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!

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

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

Want to reuse materials that would otherwise get tossed in the trash? Show your third grader how to get crafty with old newspaper and fabric.

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Make a homemade doll out of recycled materials, similar to dolls made by pioneer children.

Discover the science behind materials that absorb heat, and materials that don't, by constructing this cork trivet for your dinner table.

Create a chunky, textured, tactile giraffe collage that is cute enough to pet! This is a great way to recycle old arts and crafts materials.

A scarecrow Halloween craft featuring recycled materials.

Use natural materials to try out a new kind of weaving. Your child will enjoy gathering their materials outside and then using them to create a piece of art!

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

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

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

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!

Celebrate the 100th Day of School by making an amazing sculpture using recycled materials.

Make beautiful print block art with your kids using recycled materials.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

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

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

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

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Celebrate the coming of Spring and Earth Day with this 3-D art project that makes use of recycled materials.