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This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

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

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Check out this cool science fair project on identifying rocks and minerals for kids.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

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

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Take a dive into the candy jar with this yummy science experiment.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This science fair project idea explores which fruit molds the fastest.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this experiment you will replicate the mummification process by making a hot dog mummy.

This science fair project idea investigates the hardness property of minerals.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

This science fair project teaches students the differences between fruits and vegetables.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

This science project teaches students to classify different shapes of leaves.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.