Rhys Baker (author) from Peterborough, UK on December 25, 2011: I will try to keep this as a standard for my Couldn't agree more
This will net you extra points for seconds extra Dee - huge thanks for your specific comments - really helpful. TIP FOR THE TOP: circle your anomalous results (any outliers that do not fit your trend) and label them in your key/legend.
Look for the pattern to decide which is most appropriate. They can either be straight lined, or a smooth curve. These lines pass through or near as many data points as possible. More often, we are seeking the trend or pattern that our results show, for that we need. Only very rarely are data points connected in this way. I know I have stated this before, but I so often see jagged connected lines on graphs from my students.
Ensure you plot your data carefully, along the corridor and up the stairs.As such, temperature goes on your x axis (it is independent) and rate goes on your y axis (it is dependent) For example, when looking at the effect of temperature on rate of reaction (a classic chemistry investigation), you change the temperature and measure the rate. Your y axis should always plot the dependent variable - this is the variable you are measuring. Your x axis should always show the independent variable - this is the variable you are changing. Ensure you have put your graph the right way around.E.g.: A Graph to show the effect of x on y But now it is time to pick up question specific marks. If you have ticked off each of the Commandments, you are halfway to achieving a good overall mark for this particular graph. Even if all their data points are correctly plotted, they have already thrown away half the marks! Be Specific Taking a closer look at that graph - this person has broken five of the six commandments.
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