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.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

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

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

Start thinking about how the internet works by assembling an Ethernet cable of your own!

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

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

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

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!

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

This experiment investigates whether there are certain sounds that affect men and women differently

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

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Here's an investigative activity in which your child will discover real-world names and uses for sugar and find out how it is hidden in many different foods.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

What happens when light hits a hard surface? Find out by conducting a simple light reflection experiment with your preschooler.

Teach your child about using pumps to move water in this simple and educational preschool science activity!

This kids' activity is fun to perform and impressive to watch. Plus, it's a great example of Newton's First Law of Motion at work.

Discover the force of water! This article provides step-by-step instructions for creating your own science experiment.

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

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

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

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

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.