Friday, March 18, 2011

Sabbatical-Science Eureka

For Term 1 sabbaticals, I attended this course, Science Eureka. This was because I was interested in Science, and found this course very meaningful for me. We conducted experiments of many kinds, physics and chemistry. To me, I prefered chemistry, and the experiments were also very fun. Here are a few...
 
1) Making snow
 
We used sodium polycrylate, a chemical able to absorb 800 times it mass in water, and could form beads which resemble snow. This was a very quick and easy process, and was very fun as we did it, and we got to learn a lot from it. We also got to keep the snow afterwards.
 
2) Artificial Blood
 
There are many uses for artificial blood, as seen in movies and tv shows. However, how do they make the "blood". Well, hollywood does it this way. It is a combination of Iron(|||)Nitrate and Sodium Thiocyanate. This forms a colour that is nearly identical to blood, and makes it seem very guesome. It was also a fun process.
 
3)Apple juice
 
To produce more apple juice (although may not be drinkable), there is this enzyme pestinase. This substance is able to break down pectin, which is a substrate found in the cell wall of plants. This would then release more juice.
 
The sabbatical is very enjoyable, as well as educational. We conducted many more experiments, and these are just only a few. I really enjoyed it, and am very interested in such courses in the future.

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