Uncertainity and percentage error calculations are new to the AQA specification in Biology and something which will be assessed a lot more moving forward. These questions can be used for any exam board on the whole and explore what uncertainity is and means, the concept of resolution and plenty of exam questions for students to try.
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The examples and powerpoint are good but there are errors in unit conversion, e.g. 0.2cm3 is not 0.02m3 (there are 1,000,000 cm3 in a m3).
Really good clear power point and worksheet with answers explained on the power point
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