This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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

Learn about our cognitive capacity of attention and to learn about factors that influence attention.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project idea determines whether volunteers remember more information presented orally or visually or kinesthetically.

This interactive project invites science fair-goers to participate in examination and recording to demonstrate the importance of firsthand observation.

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.

The goal of this science fair project is to attempt to build a perpetual motion machine and analyze the Laws of Thermodynamics.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

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

This science fair project idea explores the fastest average speed a human can talk.

Test of the effect of exercise on rote memory. Prepare a single list of 40 randomly chosen words. Have volunteers recall as many words as possible.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.

Learn about how sugar fermentation and growing yeast in this easy science project! Yeast is a eukaryotic microbe that puts the fun in fungus!

This science fair project idea investigates the difference in reaction times between boys and girls.

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

Explore whether pianists have the tendency to type faster than non-pianists.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.