This science fair project idea produces sounds by creating vibrations using different objects.

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

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

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

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

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

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

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

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

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

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Try this chemistry experiment with your curious kid and get some "shocking" results!

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

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

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

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?

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

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

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

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

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!

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

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