Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Is it a square or a circle? See if you can trick your friends with this zany science project!

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Plants and light seem to be good buddies, but how far does the friendship really go?

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Using a toy race car kids create a visual model of the Doppler Effect.

How do organic materials become soil? This science experiment measures what materials biodegrade.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

The objective of this science project is to determine the length of time for different seeds to germinate.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

This science fair project idea explores how length affects the weight a bridge can hold.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

This science fair project idea investigates if webbed feet help a duck (and others) swim.