This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

This science fair project idea produces varying pitches of sound.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

The weather is a key kindergarten science concept. With this activity your child will learn about wind direction and create a self portrait, too!

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

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

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.