What's up with Water

On our path to learn more about water and the water cycle, we took a side road to talk about properties of water.  We did an activity where we dropped water onto the head of a penny.  In their predictions, students guessed they could fit anywhere between 4-8.  They were very surprised that you can actually fit a lot more than that!  The reason for this is cohesion.  Water tends to stick to itself, meaning the droplets will come together and form one large drop.  Here are some pictures from our demonstration.