Due: Thursday, March 13, 2014.
2. Why did the metal ball no longer fit through the ring?
3. Why do you think the bi-metallic (made up of different materials - brass vs. iron) disks bounced when heated?
4. Do all liquids expand at the same rate?
5. Do gases expand when heated?
6. Why do you think the balloon re-inflated after being removed from the cold liquid nitrogen?