Diffusion Lab Report

Diffusion is a natural act that takes place in the human body in order to utilize and absorb important concentrations into the body. In order to understand how diffusion works, it is important to understand how temperature plays a role. In connection with diffusion, a certain temperature must be obtained to begin the process.

Introduction
Diffusion is very important in the body for the movement of substances. An example would be the movement of oxygen from the air into the blood and carbon dioxide out of the blood into the air and into the lungs (APBI Bringing Medicines to Life). The question has arose, “Does temperature affect the rate that diffusion takes place.” To evaluate the effect of one versus the other, the definitions for both must be acknowledged. Diffusion is simply the movement of a substance from an area of higher concentration to an area of lower concentration (see Figure 1).
Before aligning each beaker in a row on the legal paper, fill each beaker with a different temperature of water. The first beaker should be filled with 200 mL of ice cold water. The second beaker (control) should be filled with 200 mL of room temperature water. The third beaker should be filled with 200 mL of water that has been micro-waved for approximately 2 minutes. Place each beaker on the legal paper. Using the marker, label each beaker differently as “cold, hot and room temperature” so that it is easy to distinguish one beaker from the other. Before beginning the experiment, use the thermometer to check the Fahrenheit temperature of each beaker to ensure the temperature difference. Next, grab the timer and the blue food coloring. At the same time, drop 1 dropper full of blue food coloring (see Figure 2.) into each beaker and begin the timer. Observe the beakers and document the time and temperature of complete diffusion in each