This science experiment tests whether warm or cold water works best in making cut flowers last longer.

This experiment will explore whether adding different substances to a gel affects its strength.

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

Your preschooler will engage their senses by making a scented pumpkin to decorate your house.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

Kids grow sunflower greens from seeds for a hands-on gardening experience in this kindergarten life science activity.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

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

What is a barycenter? Kids learn how gravity and mass influence the orbit of binary systems like planets and moons or stars and planets in this cool experiment.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

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

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

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

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

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

This free science fair project explores the "dirty" relationship between the presence of organic material in soil and water absorbency.