How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

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

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

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.

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

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

Teach your child how butter is created by shaking up cream the old-fashioned way.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

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!

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

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

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

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

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!