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

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.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

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.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

This science experiment tests if dog saliva can really help heal wounds.

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

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

Find out whether packaged seeds actually do expire in this new science fair project idea.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

Take a nature walk in your backyard or local park to find one object for every letter of the alphabet. Then put them together in this handy nature book.

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.