Lab Report

Foul Water Lab Experiment

6-18-13

Clemmy, Julia, Kourosh

Summer School 2013

Dr. Forman



Abstract:

• Overall, the experiment was very successful. We were able to purify our water, after executing each of the 3 procedures. Although the charcoal adsorption and filtration system was lengthy, we were able to wash our hands safely in the pure, clear water.

Procedure:

1. Prepare for experiment.

2. Retrieve 100 mL of foul water from Dr. Forman. Proceed to measure it's volume and record the data found.

3. Describe and record the following: appearance, color, clarity, odor, oil presence, solid presence.

4. Let sample sit.

5. Remove as much of the upper liquid (oil) as possible.

6. Put a few drops of distilled water into the cylinder and check to see it the distilled water floats to the top or sinks the bottom.

7. Record data as shown in step #3.

8. Dispose as intructed by teacher.

9. Prepare paper cups; poke holes using paper clip.

10. Add 1 cm of gravel, then 2 cm of sand, and then 1 cm of gravel. Moisten.

11. Pour foul water and use the sand and gravel to filter it into the beaker below.

12. Dispose as instructed by teacher.

13. Record data as shown in step #3.

14. Fold a piece of filter paper as shown in the drawing on pg. 12 (I folded it wrong, don't do that).

15. Put the filter paper in the funnel and moisten the paper so that it stays down.

16. Place funnel in metal ring and place beaker below.

17. Mix the 1 teaspoon of charcoal, given to us by Dr. Forman, into a beaker with foul water and swirl for a few seconds.

18. If happy with your result, record data as previously done and then dispose.

19. Wash hands thouroughly.

Purpose of experiment:

• The purpose of the experiment wass to purify the foul water, making it possible to wash your hands safely.

CLASS RESULTS:

• The aggregated data shows that the volume of the water lowered as the water went through each step of the process. Each step filtered more and more out of the water. The foul water was not completely pure because there was electrical conductivity apparent. We know this because we took a conductivity test and the light brightened meaning there is electrical conductivity.
  

GROUP RESULTS:

THE HOLY WATER: