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

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

Study the effect of music on blood pressure. Compare blood pressure readings before and after the listening session. Analyze results, write a detailed report.

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.

I scream, you scream, we all scream for homemade spearmint ice cream!

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

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.

This experiment evaluates whether the phenomenon of "choice blindness" occurs more often with men or women.

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

Evaluate if people are more influenced by video or audio advertising.

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

This simple activity is not only fun, it's also a useful way to organize children's closets — and offer kids some autonomy to boot.

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

Help your child get to know the least-appreciated of the five senses, the sense of smell, with a smelling station.

Did you know that August is American Artist Month? Your child can explore the art of photography by using a digital camera to capture the landscape around her.

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.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

Does your child know that salt water conducts electricity? This simple experiment will show how salt water acts as a conductor to electrical currents.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

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!

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

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!

Did you know magnifying glasses are magic? This hands-on activity has kids using magnifying glasses to engage with the world around them and look close to examine what they find.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

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.