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Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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!

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

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

What happens when colored beams of light mix? You might be surprised.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

This science fair project idea produces varying pitches of sound.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

This science fair project idea produces sounds by creating vibrations using different objects.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

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

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

This science fair project idea experiments with spinning color wheels and optical illusions.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This science fair project idea explores whether talking to a plant will help it grow.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.