What kind of fabric holds dye best? How can you improve a dyed fabric's colorfastness? In this colorful project, test colorfastness using mordants and bleach.

Which type of sunglass lenses gives you the best protection from the sun's harmful UV rays? Find out in this cool science project!

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

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

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

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Science fair project that determines the correlation between the ability of selected materials to conduct heat and a material's density.

Learn whether dark green and leafy veggies tend to have a higher Vitamin C content than lighter green varieties.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

This science fair project ideaexplores whether cooking food destroys potential vitamin levels.

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

How does light affect plant growth? Do different colors of light work better than others? Find out in this classic science fair project idea.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

Check out this science project idea that will have your kid investigate how dots (also known as pixels) are used to create digital photographs.

Check out this cool science fair project on identifying rocks and minerals for kids.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

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

The objective of this experiment is to evaluate which types of people are most impacted by the McCollough effect.

This science fair project idea explores if people with cool skin tones prefer cool colors and people with warm skin tones prefer warm colors.

Determine the growth rates of different types of human hair. Ask volunteers to not cut their hair until the end of experiment. Measure hair length.

This science fair project teaches students about wilting and browning of salad greens.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

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

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

Research basic components of vacuum cleaners, consult vacuum cleaner manufacturers for advice. Design vacuum with attachments that change automatically.