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Science resources, KS3 and KS4 following the AQA trilogy specification
KS4 - Aseptic technique
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KS4 - Aseptic technique

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A work sheet for completing the practical where students make an uncontaminated bacterial culture using aseptic technique. Triple Biology ONLY AQA. Variables, method and questions.
KS3 - Food tests
jaderawstronjaderawstron

KS3 - Food tests

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A KS3 lesson on the four biological food tests: starch, protein, fats and glucose with printable work sheet on the last slide.
KS4 - Diffusion
jaderawstronjaderawstron

KS4 - Diffusion

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Diffusion powerpoint including exchange of gases and relating to surface area. Also includes factors that affect the rate of diffusion
KS4 - Chromosomes
jaderawstronjaderawstron

KS4 - Chromosomes

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Powerpoint and work sheet on chromosomes. The red numbers on the slides refer to the questions the students can answer on their word doc