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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!

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

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.

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

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

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

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

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.

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.

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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 if people with cool skin tones prefer cool colors and people with warm skin tones prefer warm colors.

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

This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

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

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

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

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

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

Get this cool middle school science fair project idea on how to conduct a flame test to detect the presence of certain metals in chemical compounds.