Apply: Many gyms and health clubs have steam saunas, which are small steam-filled rooms. Traditionally, steam saunas have a container of heated rocks. A small ladle of water is poured on the rocks in order to make the steam.

1. Use what you have learned so far about heat transfer to explain how hot rocks can be used to make steam?

2. Why do you think only a small ladle-full of water is poured on the rocks at one time?