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 model roller coaster that a marble can travel through.

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 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.

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

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

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.

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

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

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