Sunday, September 28, 2008

The Acid Test

Last week in class we performed an Acid Test lab. The purpose of this lab was to observe that acid and baking soda react with one another. We used acid from various fruits juices and fruits and tested the acid amount compared to regular vinegar. During our lab, we discovered that out of the seven different controls: lime juice, vinegar, and white grape juice rounded out the top three and reacted the most with the baking soda. We noticed that the fruit juices fizzed the most because they are more concentrated than fruit itself. It is very easy to read the results with the two graphs I created. One graph showed the acids in the juices and the other showed the acids in the fruit pieces. Creating these graphs made it easier to see the results. I came across some complications with this lab because the instructions were too vague. I found it hard to follow these directions and I would rewrite the instructions if I were to use this lab in my classroom. If I had troubles following directions with this lab I believe my students would as well. With this lab, I learned how to understand pattern, interaction and change.

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