Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

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.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

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

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Make a backbone model to explore human anatomy and life science.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

This activity allows your kindergartener to translate what they observe into a beautiful poem.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

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

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

This science project teaches students to classify different shapes of leaves.

In this science fair project, students create their own miniature salt flats at home.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

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

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

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

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

Take a dive into the candy jar with this yummy science experiment.