Properties of Water

In our classroom, we performed a lab to evaluate the properties of water. In the first part of the lab, we used a dropper to see how many droplets of water we could drop onto a single penny. It held to just about 30 droplets, forming a large bubble shaped droplet of water sitting atop the penny. The property of water that is being evaluated here is a hydrogen bond. Hydrogen bond keeps the water as a bubble on top of the penny. This is important regarding living organisms because a hydrogen bond is very important when we talk about the replication of DNA.
In the second part of the lab, we placed a single droplet of water onto a piece of wax paper. We then tried to chop it in half, I did manage to chop the droplet in half after several attempts. It creates two individual small, bubblie droplets of water. The property of water that is being evaluated here is cohesion and adhesion. Cohesion is how the particles in water unite together, and adhesion is the attraction between unlike bodies, for example the attraction between the water and the penny.