| Materials: | 2 oranges, 1 clear container of water |
| Directions: | Peel one orange ahead of time allowing as much of the peel as possible to remain in one piece. |
| Safety Concerns: | None. |
| Questions: | Does an orange float or sink? Does the peeled fruit float or sink? Does the peel float or sink? What explanations can you offer? |
| Concepts: | The fruit is denser than the peel. The air in the peel actually buoys the fruit up. Some people think this is why life jackets are orange. |