Balloon on a Bottle
In this activity, students brainstorm various ways that an un-inflated balloon placed over a bottle's opening can be inflated without touching the balloon.
- Students learn that air's volume changes with temperature
- Students learn that air can both expand and contract depending on whether its temperature increases or decreases
- Students learn that warming air increases the volume inside a balloon, no matter whether the balloon is pointing upwards, to the side, or downwards.
Download the Balloon on Bottle lesson plan linked below.