Tuesday, May 11, 2010

i was looking over my notes the other day and i remembered the teacher saying something about the experimental design method (writing up the method in paragraph form)

so just in case we're to be marked on that,

METHOD:
A dozen uncooked eggs were collected, numbered and photographed separately for later uses. Eight plastic cups were collected, four of which were used to pour 140mls of listerine, 140ml of toothpaste solution (ratio of toothpaste to water 1:13), 140mls of salted water (ratio of salt to water 2:5), and 140mls of tap water. The first four eggs were then placed into the four plastic cups. The eggs were left to sit in the solvents for three days before carefully picking out and placing the eggs on a stand to air dry. The other four plastic cups from the eight collected, were then used to pour 140 mls of coke. when all four eggs had air dried, they were then placed inside the soda solution. the eggs were then left aside for 2 days. when the 2 days had expired, the eggs were gently picked out, lightly dried, then scrubbed clean. photographs were taken of the four eggs and compared to the previous photographs taken. observations and colour differences were then recorded in a table. the experiment was then repeated using 140 mls of lemonade then 140 mls of fanta instead of using 140 mls of coke.

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