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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.

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

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

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

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.

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

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.

Kids think of 25 ways to live healthier, more active lives and come up with a plan to put into action in this middle school heath activity.

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

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

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

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

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.

In this design challenge, students will be tasked with creating a bouncy ball polymer!

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

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

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

Find out whether packaged seeds actually do expire in this new science fair project idea.

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

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

This experiment evaluates if a noisy environment makes it harder for test subjects to perform tasks that require hand-eye coordination.

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 will evaluate if chewing gum affects students' test performance.