1. Rate of Diffusion of Saffranin Red Methylene Blue Dye in four physical conditions

2. Group Members  Veronyca Washington  Ashley Burnette  Valerie Frazier

3. Objective The purpose of our experiment is to learn the effect temperature has on the diffusion of suffranin and methylene dye. This can be helpful in understanding how diffusion in water occurs in different physical conditions.

4. Materials  150 mL of hot tap, cold tap, ice, and boiling water  Thermometer  Stop watch  Cups

5. Procedure  A drop of Saffranin red and Methylene blue dye was dropped into each type of water.  The time was recorded for the dye to diffuse in the waters. (The cups were not touched once the dye was in the water.)

6. Blue dye Data

7. Red dye Data

8. Results

9. Results (continued)

10. Descriptive Statistics

11. Histogram for time

12. Histogram for temperature

13. Conclusion  The Methylene Blue and Saffranin Red dyes worked almost equally.  The ice water took the longest for both dyes to formulate in.  The tap (regular) water took the second longest for both dyes.  The hot tap water took the third longest for both dyes.  The boiling water took the shortest amount of time because both dyes could easily diffuse throughout the water in heat.