Sink or Float?

Here are the young scientists at work.

This is a great activity that teaches some of the scientific method.  First, the kids decide if the item will float.  Then they right "yes or no" in the "Guess" column.  That is done in marker, so that they won't change their answer.  

Then we set up "Preheim's Pond" and do the experiment to see if they are correct in their hypothesis.  After each item is tested, they write the correct answer in the second column.  They love this experiment and their is a lot of cheering going on!