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

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

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.

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

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.

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

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

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

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

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

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

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

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

This surprisingly good glue recipe comes from common kitchen items.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

The purpose of this science fair project is to build a basic radio.

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

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

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.

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

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

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.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.