How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

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.

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

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

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

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

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This science fair project teaches students the differences between fruits and vegetables.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

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

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

This science fair project idea explores substances that cause a bubble to last longer.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.