Cassie Chen

Biology teacher 生物老师

Last month, our biology lab did several experiments for Year 12 and Year 13. 

In order to know the difference between aerobic respiration and anaerobic respiration, my Year 13 students made their own Jiuniang which consists of a mixture of partially digested rice grains and a sweet liquid.  It is made by fermenting glutinous rice with several yeast and bacteria inside. After 5 days of fermenting，they all get their sweet drink which is a complimentary work.

Year 12 students tried to determine the factors for enzyme activity. Temperature and PH are the main factors they were looking at. After observing amylases under different conditions, they found the optimum conditions for amylases. They also did a lab report after this experiment.

For my Year 11 and Year 10 students, they did a group presentation based on different topics. Year 10 students worked on specialized cells. The whole class was divided into four groups and each group presented a specific cell. Year 11 students were working on different types of animal behavior, they searched information about example and explanation of those behavior. At the end, they all did a great job on this group project.