Hit The Penny Research Paper

My results of part B shows that a penny can hold 21 drops of water on the top. This relates to adhesion since the penny that is copper is attracted to a different substance which is water. When the drops hit the penny, the adhesive force of the water and the penny keeps the water from falling off the sides. It also shows high cohesion since the water molecules are attracted to each other. In a water molecule it has a hydrogen bond of oxygen and hydrogen since they are attracted to one another. It has a positive charge of two hydrogen atoms and oxygen a negatively charged atom which allows them to be attracted to each other since positive is attracted to negative. Since water has a positive end and a negative end, it is a polar molecule since polarity has one positively charged end and the other is negatively charged.

The smearing of the soap into the surface of the penny did affect the amount of drops of water the penny could hold since there was only eight drops with the soap on the top
It can contaminate groundwater, poisons ecosystems and the environment. Soaps contains chemicals that harm fish, deteriorate water quality, and cause algae to grow. For example, by washing your car in your driveway, the soap picks up the dirt, grease, and oil that will flow into nearby storm drains which run directly into bodies of water. Furthermore, soaps that are used on the skin in the shower can irritate the skin since it contains dyes and perfumes. Lastly, antibacterial soap contains chemicals and antibacterial agents that affects the microbiota balance on your skin. The chemicals from the soap kill microflora which are beneficial to your health. For example, by using antibacterial soap, you are more subject to bacterial and yeast infections since you are killing the microflora which can naturally prevent those