I must also mention how impressed I was with the predictions our scientists made yesterday. Each scientist made a written prediction in their journal about whether they thought fruit would float or sink. They made some great connections, for example, if people can float, and we're big, then big fruits can probably float. Students generally thought that one of 3 things was important when making this prediction: weight, size, or air content. They did not all agree that heavy things would sink, or that big things would float, but what was important was that they justified their thinking very well. Later we did our experiment and found that an unpeeled orange (and the peel of an orange) floats, while a peeled orange sinks. The reason for this has something to do with air and the peel. Ask your scientist for more details of this experiment, and check out my previous post for a way to continue this experiment at home.
