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

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.

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!

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

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.

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.

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.

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.

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.

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

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

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

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

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

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