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 cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

What's a crater, and how does it happen? Here's a kindergarten experiment with safe, nontoxic ingredients.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

This project compares the strength of one, two, and three-ply toilet paper.

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

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Show your child the solar system and let them explore the stars and space by creating a painting. It's a fun and easy way capture your child's imagination.

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

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

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

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!

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

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

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

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

Help young learners discover why catÃs eyes glow in the dark with this simple experiment

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

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

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

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

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

Here's a simple craft activity that can help your youngster better visualize the life cycle of a frog as a circle.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.