Exam terms

Predict

In the context of the exam questions this means that: you need to give a plausible outcome. Plausible means something that seems reasonable or probable.

Precision

Precise measurements are ones in which there is very little spread about the mean value.  Precision depends only on the extent of random errors – it gives no indication of how close results are to the true value.  Be careful not to confuse accuracy, precision and resolution. Accuracy is how close to the true value …

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Plot

In the context of the exam questions this means that: you need to mark on a graph using data given. Make sure you use a SHARP PENCIL and be careful to draw accurately. Marks are often lost by candidates who rush this type of question and don’t take the care needed to be accurate. Placing …

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Outlier

An outlier is an data point that is distant from other observations, it does not fit into the trend shown by the other results.  Outliers that are due to variability in the measurement or an error in the experimental procedures should discarded when interpreting results. Repeating the measurement is a useful way to test for …

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Name

eg, if you had a picture of this cell you would be expected to know this is a plant cell. In the context of an exam question you may need to state which part of the cell is responsible for photosynthesis – you would state that it is the chloroplast.