Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: The Properties of Air
Lesson plan to teach properties of air. Students use balloons, plastic bottles, plastic bags and a meter stick to conclude that air is a gas that has weight, exerts pressure, and moves.
Science is Fun
Science Is Fun: Needle Through a Balloon
In this experiment, you will learn how to push a needle right through an inflated balloon without popping it, and why this is possible.