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If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Give your budding young observers a chance to discover simple machines at use in their own home.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

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

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

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

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

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.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

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

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

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

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.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

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.

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

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

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

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Teach your child how butter is created by shaking up cream the old-fashioned way.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

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

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

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