Today, we went back to thw lab to check our results. We were so shocked we=hen we entered the lab. The alkaline tadpoles were dead , while the acid tadpoles are still alive. We ask the lab tech about the happening. He said that maybe the tadpoles starve to death But when he tested the acidic water, he found out that the acid water has gone up from pH4 to 5. He assumed that, that maybe the reason that the tadpoles are still alive. But we accidentally change the water of the alkaline, so we were unable to test the pH. We replace the alkaline, so maybe we must wait for the results on monday.
Yu Ji 7:25 AM
Monday, June 8, 2009
1st day of project
Today, we started our project.
we ask the lab techician to help us put in the pH
We make the first container to have pH 4.(acid)
The second one has pH 11(alkaline)
the last one was left with normal water.
We sat there to observe but there is no change in the tadpoles.
Maybe we will have to wait for the next few days to observe.
Yu Ji 11:02 PM
welcome to he group's website. group members
Tan Yu Ji
Nicholas
Ming Shun
Glynis
Sarah
