Penny Lab

Procedure:
Fill the water dropper with water and slowly drop water on the penny. Try to get as many drops as you can before it spills off.

Prediction:
15 drops.

Outcome:
Trial 1~ 17 drops
Trial 2~ 17 drops
Trial 3~ 18 drops
I wasn't completely surprised by the result. I knew it would be more than most people would think, but it was still more than I expected.

Explanation:
The cohesion of the water kept the drops together, so they didn't fall off the penny until it was just too much to hold together, or until someone got careless with their dropper and went too fast.