Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

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

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

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

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.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

How powerful is the reaction between baking soda and vinegar? Find out here!

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

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

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This science fair project idea examines which type of insulation holds in the most heat.

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

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Have your child kick off their summer vacation by making a miniature water slide!