A simple science experiment exploring the physics of water pressure that's been amazing people since Medieval times.

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

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.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

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

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.

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

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.

This activity is a great introduction to polymer chemistry. It might seem complicated, but all you'll need is the material found inside of a baby's diaper!

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Blanket forts are a kid classic! Let your child create a âfortress of solitudeâ on his own for reading, telling scary stories or for cozy cocooning.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

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!

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

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 that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

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

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

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.

What do you get when you combine science and fairies? Fairy scientists who make their own potion, of course! This activity promotes critical thinking skills as your child mixes, experiments, and creates their very own fairy potions.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

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

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

Set your teen on the beat in a real world "crime scene" investigation. Can he tell whose fingerprints are on a drinking glass?

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.

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!

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

This science fair project idea studies how talking on a cell phone affect driving?