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Skill Area P: Planning experimental procedures Activities chosen should enable pupils to develop their abilities in the aspects listed below. * Plan the most appropriate experimental method that can be carried out in a school science context. * Identify and take account of the key safety requirements. * Select the most appropriate measuring instruments and other necessary equipment. * Consider how many results to take and whether repetition is necessary. * Consider over what range the results should be taken. * Plan how to vary, control or take account of the key factors likely to affect the outcome of the activity. * Make predictions where this helps the planning or supports their understanding of the nature of the Enquirer. * Make use of scientific knowledge and understanding to explain the plans made. * Use secondary sources or preliminary work as an aid to planning. Aim: To investigate the effects of two variables on solar cell output. Factors: Factor' here means 'anything which may...

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