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 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.

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

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.

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

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

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

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.

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

Create your own version of an Aboriginal Australian dot painting in this fun activity!

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

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

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

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

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.

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 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.

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.

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