2008年7月17日星期四

Sian...No more full marks for SPA

Bio SPA used filter to cover the middle section of the leaf instead of covering the lamp???Why din't i think of that during the exam?Then i dint say must ensure that the place must be totally dark when i wrap the filter around the leaf....lol? Hope they will be kind and give me 2+1=3...

Chem SPA said "stop the stopwatch when there is no more visible effervescence".... Why did i put "visible effervescence"??? I dint know that actually "until it completely dissolves" is acceptable cuz i thought that the marker will comment "how do you know?" ..... What a joke.... Then i can only think of adding the word visible so that the marker wont say " how do you know" again when he sees the word "effervescence"... I regretted changing the experiment the last 20 mins, from using the gas syringe to measure rate of reaction to just simply looking at how fast it dissolves.... Zzz...But why did i change it? cuz i look at the definition of 'rate of reaction' which is something like 'time taken for the reactants to turn into products'...Then im afraid that the amount of gas i set may not be sufficient for the tablets to dissolve completely...Lol??

God, bless my SPA exams to ace :)

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