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How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

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

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Introduce your child to the wonders of colorful chemistry with this simple food coloring project.

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.

Experiment with the wonders of pressure and condensation by crushing a soda can with nothing but air and water!

Introduce your child to science with something they see everyday--their shadow!

Explore scientific concepts with this experiment that introduces kids to the scientific method!

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!

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

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

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

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.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

Looking for a way to help your teen explore the fun side of physics? How about a round of Saturday morning cartoons?

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

This kindergarten science activity will help her explore the changing states of matter which transform an egg from raw to soft to hard-boiled.

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

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

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

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

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

Before digital cameras, before Polaroids, there was the original pinhole camera. Build a pinhole camera and see what true vintage photography looks like!

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.