Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

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.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

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

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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

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!

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

Engineers in training can get started with this simple wheel-and-axle construction activity.

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

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

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

Teach your child how butter is created by shaking up cream the old-fashioned way.

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

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