This project determines what percentage of test subjects react adversely to the sound of fingernails on a chalkboard and explores their physiological responses.

Here is a nifty science experiment using Epsom salts to make "frost" appear on a piece of glass.

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

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

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

Engineers in training can get started with this simple wheel-and-axle construction activity.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

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

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Have you or your child ever heard that nursery rhyme and wondered just what curds and whey are anyway? Do this simple experiment together to find out!

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Learn how matter transmits sound with a simple, hands-on experiment using sand, water and air.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

Set your teen on the beat in a real world "crime scene" investigation. Can he tell whose fingerprints are on a drinking glass?