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Find out whether matte or shiny nail polish lasts longer.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

This science fair project idea produces varying pitches of sound.

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

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

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

This science fair project idea explores substances that cause a bubble to last longer.

This project compares the strength of one, two, and three-ply toilet paper.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

This science fair project idea produces sounds by creating vibrations using different objects.

This science fair project idea provides evidence that air is everywhere and takes up space.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

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

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

This science fair project idea explores how length affects the weight a bridge can hold.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

This project explores ways to prevent static electrical shocks.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.