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!

Making your own glass cleaner is easy, effective and inexpensive!

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

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

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

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

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

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

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

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.

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

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

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

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

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.

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

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!

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

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.

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.

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.