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 a car that can be powered by a balloon!

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

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

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