(Identifying variables, recording, presenting and analysing results)
1, Try the opposite investigation exactly as it is presented.
(This should take no longer than ten minutes)
2, In my opinion this investigation needs to have some changes made to make it 'more scientific'.
What changes would you make? Present your improved version of the investigation, including some data from doing the investigation and well as a comment about your findings, in a format of your choice. (50 minutes approx)