Sunday, 11 March 2012

ISA information

10y4 - Your ISA is on solar cells, you've done your prac and will be doing the graph next lesson. Graphs get marked out of four and need to have all the following things done correctly to get full marks -

  1. x axis scaled and labelled correctly
  2. y axis scaled and labelled correctly
  3. Data points plotted accurately
  4. Suitable line of best fit drawn
You will need to think about your values for your tests, and use scales that show this information clearly.  'Labelled correctly' means including units!!!!!

10x2, you will be sitting the section 2 emulsions paper (although some people still need to draw a graph, so if you weren't in class on Friday you'll do that first).  For this paper, you will need to do the following tasks as outlined in the information from the AQA -
  • analyse your on results
  • draw a conclusion
  • Compare your results to the original hypothesis you were given
  • Evaluate the method of collection and the quality of the resulting data
  • Analyse other data that will be given to you (i.e. a sheet with results from a similar investigation)
  • Relate your findings to the context of the ISA (from your research sheet).
You will have your research sheet and graphs with you for the section 2 paper, and will be given data sheets for the similar experiment.  Make sure you can remember -
  1. What the independent and dependent variables were
  2. What variables you kept the same (control variables)
  3. Any factors that could have affected your results 
  4. How this experiment would be used (by food industry companies) to check that their products are ok to sell.  
Finally, defining the following terms will help you get ready for the test - independent, dependent, range, interval, control, reliable, anomaly.

Both classes, remember to come and see me if you have any questions before the next sections. Good luck!

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