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

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

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

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

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

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

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

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

This science fair project teaches students the differences between fruits and vegetables.

The purpose of this science fair project is to build a basic radio.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

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

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

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

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

This science fair project idea examines the reason boats are shaped and engineered.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.