Penny Lab

The Penny Lab is an activity to see how many water droplets can go on top of a penny without the water coming off the penny.
I thought that there would only be 4 water droplets that would be able to get onto the penny.
I found out that 9 water droplets could go on top of the penny without it coming off.
The water molecules inside the water droplets were constantly breaking apart with their positive and negative charge. Also, water molecules were bulding up inside the water droplet, so it would eventually come off the penny.