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How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Determine which metal has the highest rate of conductivity.

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

This science fair project idea examines if there is a reason that musical notes are at the pitches they are.

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?

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

Test your friends to find out if you can replicate the placebo effect's incredible results.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

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

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Here's a science activity to help your child investigate how seeds are designed to travel.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.

The objective of this science project is to investigate patterns in fingerprints among family members.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

This science fair project idea provides evidence that air is everywhere and takes up space.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

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

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

This cool middle school science fair project idea helps students explore the role phototropism plays in the growth of green plants.