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

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

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

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