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

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

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

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

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

Bring the magic and mystery of the night sky to the light of day with this fun constellation art project!

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

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

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

This activity will help your child review science concepts, learn new ones, and become familiar with examples of various concepts in science. Plus, it's fun!

Illustrate the idea of light refraction with this exciting and mystifying experiment.

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?

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

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

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

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

This exploration of different types of energy will help young minds appreciate and observe thermal, kinetic, mechanical, and other forms of energy.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

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

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

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

Here's a fun activity to reinforce the physics concept of stored energy for your middle schooler.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

This science fair project idea explores whether talking to a plant will help it grow.