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This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Make a backbone model to explore human anatomy and life science.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

This classic children's game demonstrates how sound travels through air vs. through a solid.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Start your toy engines -- this is going to be a fast and friction-filled race!

Discover whether a metal will expand under hot water.

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

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.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

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.

Slip some science into storm watching with a homemade rain gauge!

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.