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The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

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!

.Have you ever had problems with your wifi signal strength? In this experiment you will learn about how wireless signals pass through the air and solid objects.

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

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Give your budding young observers a chance to discover simple machines at use in their own home.

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

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

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

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

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.

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

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

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

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

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.

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

Find out whether matching resonant frequencies can cause objects to shatter.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

Making your own glass cleaner is easy, effective and inexpensive!

Got a young scientist at home? Try this project with him!Create your own molecule design with this home-made clay recipe and some toothpicks!

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

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

What happens when colored beams of light mix? You might be surprised.