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

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

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

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

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

This science fair project idea examines whether boys and girls differ in reflexes.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

This biodiversity project examines the biodiversity in your own backyard.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.