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The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.

Science fair project which identifies the most effective insulator that you could use to make a winter coat by comparing how well cloth and cotton trap heat.

This experiment investigates the relationship between the temperature of a candle and its burn rate.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

This project explores whether there is an effect on people, including heart rate and self-expressed mood, when they are exposed to different types of music.

This project will explore whether test subjects, deprived of points of reference, will, in attempting to walk a straight course, walk in circles.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

This experiment explores the question of whether age and/or gender play a role in people's ability to remember dreams.

In this project, you will observe and record changes in sunspots over two weeks.

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.