菓林第15組組員

我是黃心榆 HUANG.HSIN-YU








我是吳晏慈 WV.YEN-TZU

我是游雅惠

lesson on data logger.

We were provided a small bottle,one of our sunflower leaf,data logger,lamp and the C02 sensor.We started by pasting bluetack on the underside of the leaf then we inserted it in the bottle.Thalia blew carbon dioxide into the bottle and we quickly covered the bottle neck with the Co2 sensor.After a while,we could see a graph on the datalogger screen.First,the graph increased then it decreased.The graph increased because when Thalia blew carbon dioxide, the carbon dioxide increased.Then the graph decreased because the leaf took in the carbon dioxide for photosynthesis. We could see water vapour in the bottle.We enjoyed ourselves.We wish we could use the data logger again.=)

Using Datalogger to measure the intake of carbon dioxide by plants 220409

Checking on our sunflower 150409

pbl activity -- checking and action

Fatimah:I only can see the blue dye on the petals.
Jiawei: The colours did not really show up on the petals.
We think it was because the stems are broken so the dye can't get up.
If we are given another chance,we would make sure that the stems are not bent or broken.
(^(O0)^)

Planting of seed on 250309

PBL on 080409

Saiyidah and Ng Jia Wei