Students will love watching as the water balloon gets sucked into the jar! The FREE resource allows you to see a sample of my work. This resource is a science experiment on air pressure. It comes with directions, discussion questions, a lab sheet, a lab follow-up sheet, a short nonfiction article on air pressure, and a vocabulary flap for interactive notebooks. All you need for the experiment is a glass jar, water, balloon, paper, and a match. This is a REALLY low prep demonstration and it is fun and dramatic to watch.