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.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

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!

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

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.

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.

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!

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.

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

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

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.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Teach your child about using pumps to move water in this simple and educational preschool science activity!

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

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

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.

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

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

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.