In this science fair project, young children discover what happens when two fluids that have different densities get together.

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

What happens when light hits a hard surface? Find out by conducting a simple light reflection experiment with your preschooler.

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.

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

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

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.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

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!

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!

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.

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

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

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

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.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

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.

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.

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.

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.

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?

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

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

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.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

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

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

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