Reuse and recycle cardboard tubes to make spooky spiders, kooky caterpillars, wacky worms, and more.

Here's one way to recycle: turn a tuna can into a mini barbecue and teach your child the power of resourcefulness!

Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

Teach your child about recycling and gardening as she re-uses an empty plastic milk gallon jug to craft a swan-shaped plant container!

In this science fair experiment about recycling, demonstrate how the wax from a candle can be reused to make another candle.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

In this experiment, recycled objects are separated to demonstrate how mixtures are made and the variance in the physical properties of their ingredients.

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

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

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

This science fair project idea discovers new ways to use recycled materials and encourages new architectural design ideas.

Boys might wrinkle their noses at the thought of gardening, but we guarantee they'll like this activity! Make a recycled terrarium full of bug-eating plants.

Recycling may be a confusing concept for your little one, so take the time to teach them the magic of compost - right in your own backyard!

This science fair project idea compares the cuteness reaction between genders.

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

This science fair project idea observes products available in the school cafeteria and waste produced by these products.

In this experiment, the weight of aluminum cans will be compared.

Make a periscope with milk cartons and mirrors! This preschool activity is great for playing secret agent and learning simple physics.

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

The aim of this science fair project is to examine the differences between brands of bottled water and analyze consumer preferences through a taste test.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

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.

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.