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In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This science fair project idea experiments with spinning color wheels and optical illusions.

Ancient Greek vases were not only utilitarian, they were also works of art. Jump into ancient cultures by decorating your own vase in classic Greek style.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

In this activity, your students will research a favorite superhero and discuss which of their powers are real and not real. Your students will be able to complete a simple research chart and graphic organizer.

Looking for a unique arts and crafts activity that gives some writing practice? Help your child make her own back-to-school business cards!

Use fun and fuzzy pipe cleaners to help your child learn how to form important letters that make up the words that are the building blocks of phonics.

In this hands-on activity, kids learn what it takes to foster seedlings into full-grown plants, all in a regular old soda bottle!

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

This science project allows students to study the psychology of happiness.

Fireworks are such an exciting part of part of summer festivities, but it's sad when the show is over. Keep them alive all year long with watercolor fireworks.

Children will read a book, then retell the story with pictures they have painted on stones.

This fall, make a leaf crown that will encourage creative play and your child's interest in the natural world while you help them build fine motor skills.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This science fair project idea investigates how color affects temperature.

This science fair project idea determines if the color of light affects the growth of plants.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

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

Learn about this simple machine and make a pulley of your own to use for fun science trials.

The purpose of this science fair project is to build a basic radio.

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!

This science fair project idea explores the different properties & interactions of sugar molecules.

In this activity, children learn about artistic portraiture by creating a life-sized painting of their favorite creature.

Slip some science into storm watching with a homemade rain gauge!

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Help your child stay physically and mentally active with this group aerobic fitness game that's good for the heart and mind alike.