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

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

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!

This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Here's a fun activity to reinforce the physics concept of stored energy for your middle schooler.

Invite your middle schooler to bungee jump ... with eggs! This experiment will demonstrate Newton's laws of physics in an entertaining way.

This potato cannon activity teaches your middle schooler about the principle of Boyle's Law. Make a potato cannon and have a blast learning about science.

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 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.

Teach your preschooler some physics that she can relate to with this fun and simple activity!

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

Experiment with magnetism in this 8th grade science activity in which your child will create a working compass using a steel needle, magnet, and jar.

Here is a nifty science experiment using Epsom salts to make "frost" appear on a piece of glass.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

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

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

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

Show your teen how to make her own beeswax lip balm. It's one of the simplest do-it-yourself activities, and it's fun to make!

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Want to give your teen some insight into the scientific method and get the house cleaned? This activity promises both!

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

Does your child know that salt water conducts electricity? This simple experiment will show how salt water acts as a conductor to electrical currents.

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!

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.