1. Spread the back of one hand with petroleum jelly. Immerse both hands in water. What happens when you pull them out?

2. Put on a winter glove ( to represent the penguin's downy undercoat and blubber blankets) Over it, put on a large rubber glove (the penguin's outer coat of oiled feathers).

3. Now, immerse your double-gloved hand and your bare hand into a sink of cold water.

Compare your experience with that of a penguin in the ocean.