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An Interesting Science Class
Time:2014/1/21  Source:Sino-Canada Program at Soochow University High School  【Font:Big Middle Small】    

This Friday, the professor in University of Ottawa came to our Grade 10 class and had an
interesting Science class, the subject was Natural Plastic.                                

Mr.G used Power point to indicate that it is harmful to environment to use plastic. Therefore, we should know how to decompose it. Mr.G did an experiment to show the truth. He boiled the milk and our Science Teacher Mr. H gave us to smell the apple vinegar. He divided us
into small groups, two people in one group. He gave us a cup and fork, everyone had
some milk and added apple vinegar. Then we mix up them, since they all eatable,
some brave students tried, but all said uneatable.             

When we take out the precipitant in the milk and apple vinegar, then cool it down, it is the
resolvable plastic. Before it became completely cold, we made the smile face, the moon,
and the Olympic Circle, that was fantastic

We had a wonderful afternoon at that day. We discovered the theory by our own
experiment. I suddenly realize that the chemistry was not so boring. I always feel like
chemistry is finishing bunch of papers and tests. However after the first 3 months in Grade 10, I felt like chemistry has the relationship with our daily life. In our class I’m interested in not
only chemistry but also the physics, biology, geography. I learnt knowledge in class from
my own experience.


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