Penny lab

The lab i did was the penny lab, I was supose to predict how many drops of water could fit onto the penny befor it spilled over. in my prediction, i said it was going to be about 10. My partner and 1 use a medicine droper to squirt the droplets out onto the penny, our first try we got to 12, our secon 15 and our last 1 we got to 23. The reson why this happened was due to adhesion and cohesion. Adhesion made the water molecules sticky, which made them all stick onto the surface.Cohesion help the water molecules atrract eachother.