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  1. PoppyJoy

    My own sample exam responses

    You should be able to write 1000 words in 40 min. Dont prepare more than 1200, because unless you're a crazy writting machine you'll run out of time to finish well and a strong conclusion is vital. Another way of looking at it is to write 20 x 50. (20 paragraphs of 50 words)
  2. PoppyJoy

    "Describe the action of sulfate reducing bacteria around deep wrecks"

    microbes feed off iron from the wreck forming icicle-shaped "rusticles" (35% iron, 65% bacteria, archaea and eucarya) During this 'feeding' process reduce sulfates...
  3. PoppyJoy

    Chem Prac: Comparing pH of strong and weak acids

    Or you could have taken the reading too early Cos the pH readings tend to decrease the longer u leave the probe in..getting more n more accurate
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