How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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

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.

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

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.

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

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

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

This science fair project idea investigates which objects float and sink in honey, water, and oil.

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

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

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

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

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

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

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

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.

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

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.