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

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.

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

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

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.

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

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