This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

Illustrate the idea of light refraction with this exciting and mystifying experiment.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.

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.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Would you be able to tell the difference between colored contacts and natural eyes from a normal distance? Find out in this science fair project!

This activity is a fun challenge for students who have just started learning to program educational robots.

This science fair project idea explores the egg's thin membrane.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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

Here's an arts and crafts activity for preschoolers and pre-kindergarteners: build brick buildings with homemade mud bricks made from dirt and water.

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.

This project determines what category of person is most likely to be ticklish.

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.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Science fair project that determines which types of clouds are best at blocking harmful UV radiation.

This science project involves comparing the relative effectiveness of salt, pepper and dehydration in food preservation.

This science fair project idea examines which is the best way to get rid of water stains (stains caused by just water) on fabric.

Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.

Explore concepts in current and coltage with these Van de Graaff generator experiments.

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.