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

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

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

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

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.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

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

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

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!

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.

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

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

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