Fabrice+and+crystal's+page




 * UEI Project**

There are 3 pH levels Acids, bases,and neutral. Over the past couple of weeks my partner and I gathered water samples from different areas.we also measured the temperature of the water.
 * Introduction**

What is the relationship between PH and water temperature?
 * Question**

We believe that temperature can have a major effect on determining whether the water is acidic or not, so we think the the Ph level in the pond around West Roxbury Educational Complex will be closer to neutral in the winter than summer or when the temperature is very high
 * Hypothesis**


 * Experiment**

Water PH Kit, Wide range solution, Thermometer
 * Materials**


 * Procedure**
 * Water Test**
 * 1) 1 Retrieve water sample from the Pond
 * 2) 2 Get water PH kit
 * 3) 3 Put on goggles and aprons
 * 4) 4 Put water sample in the test tube
 * 5) 5 Measure water temperature
 * 6) 6 Add ten drops of Wide rand solution in to the test tube
 * 7) 7 Shake the test tube and make sure the two substance are completely mixed
 * 8) 8 put the test tube in the PH indicator


 * Results**

Temp 9.5 C Temp 21 C 29 C 3 C 49.3 F 70 F PH 7.9 PH 6.9 PH 6.5 PH 7.0
 * 4/12/09** **5/15/09** also tested hot and cold water temp 85 F Temp 36 F

The pond water is more acidic in the winter than in spring or the summer, and also the school water is more base at a higher temperature
 * Analysis**


 * Conclusion**

My hypothesis was wrong, I thought the water would be neutral at a lower temperature, actually it was more acidic. On a hot day the pond water was neutral, It is actually safe to drink. If i could do this all over again My partner and I would of gather water samples from different area ponds, rivers,beach etc.... also we tested the pond water twice, should of done more test. This was a fun project learned alot.