Discover whether cold or hot water from the faucet will boil faster on the stove.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Discover how and which salt melts ice the quickest.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

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.

This science fair project idea explores the different properties of matter.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this science fair project, students use the streak test to tell minerals apart from each other.