This science fair project idea investigates the difference in reaction times between boys and girls.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

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

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this project children practice the scientific method while playing with puffy paint.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

In this project students experiment with making music using only glasses of water.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

This science fair project idea determines the most effective method of preserving food.

The objective of this science project is to determine the length of time for different seeds to germinate.

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

Discover how and which salt melts ice the quickest.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

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