Saturday, 19 March 2011

WEEK 7 UPDATE!

I discussed with my science teacher about what i wanted to do for my science assessment. Which is pH of household items, and she gave me the thumbs up for it! Also she suggested that for my pH solution    (which i asked about) that i should make it by myself. So with the help of the internet I am going to look up the ingredients needed to make pH solution. As well as the Universal indicator. I found out that I could also used the internet for this as well. For my results, I decided to show it by using an column graph. This is the easiest way as on the X axis I would be able to list all the household items I experimented with. And on the Y axis the result of how acidic that house hold item is.

I also decided my variables for my experiment this week as well.These include my independent variable which was different household items, my dependant which is the colour change when pH solution is added to the substance. And my control variable which was the amount of pH solution(red cabbage solution) used during the experiment.



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