In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Show your fifth grader how fun and fashionable recycling can be! Guide her in making her own wallet by fusing together old plastic bags with an iron.

2nd graders with some weaving experience can turn a gallon milk jug and plastic grocery bags into a functional basket.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

Recycle bottles of different shapes and sizes to create a group of unique dolls that are as unique as the real people around you!

Recycle an old soda bottle into a beautiful, functional soap dish! In this project your child will practice saving the environment in a proactive way.

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

Looking for something to do with all those plastic 2-liter bottles that seem to accumulate endlessly? Turn them into a unique mini birdbath.

Create a tornado vortex in your kitchen in this 5th grade science experiment. All you need are two plastic bottles, duct tape, and a metal washer to begin.

If you're trying to teach your child about waste and its impact on the environment, why not repurpose a plastic milk jug and make your own sandwich container?

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Re-use old plastic food containers to create these uniquely beautiful stepping stones to embed in your backyard!

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Repurpose those plastic shopping bags hiding in your house into a fun and exciting decoration your child can hang in her room!

Using an empty plastic bottle, your child can create a newfangled version of this African percussion instrument.

In this activity, your child will have an opportunity to discuss what they like about themselves, and they will design a digital or physical poster that displays their talents, what they like, and images that describe themselves.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

With a clear bottle and a few plastic straws, you can easily make a hummingbird feeder and demonstrate the effects of atmospheric pressure at the same time!

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

Help cement the concept of place value with this simple activity that involves creating a set of dials made from Styrofoam cups.

This science fair project idea discovers which parts of the body are more sensitive to touch than other parts of the body.

By using your child's own activity schedule, you can strengthen his understanding of elapsed time, and get him organized along the way!

This Presidents Day, meet four of our country's most important heroes with this Mount Rushmore writing activity.