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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.

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.

In this challenge, students are tasked with creating a car that can be powered by a balloon!

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

In this challenge, students are tasked with creating an insulated cup that will keep beverages colder for longer than a regular cup.

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

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.

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

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

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