isa candidate research
TRANSCRIPT
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GCSE Additional ScienceISA
Photosynthesis & Limiting Factors
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Schedule
• 2x candidate research lessons
• 1x candidate research homework
• Then…
• Section 1 exam + table drawn
• Practical + graph drawn
• Section 2 exam
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CRN Overview
• Context
• Hypothesis
• Method(s)
• Equipment
• Risk Assessment
• References
• Hypothesis
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Context
• Mr John grows tomatoes in large-scale greenhouses in Somerset.
• He has approached you, asking you to investigate the effect of limiting factors on photosynthesis. The results from your work will help Mr John maximise the yield of his crop by controlling the limiting factors of photosynthesis.
End 10 Minutes
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Hypothesis
• Prediction: “As [independent variable] increases, [dependent variable] will [decrease/increase/remain constant].
• Hypothesis: prediction + scientific explanation.
5 MinutesEnd
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Method(s)
• Identify Independent Variable, Dependent Variable, several Control Variables.
• Reliability?
• Measurements?
• Could your parents follow the method correctly?
End 15 Minutes
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Equipment
• List all pieces of equipment you will use in the method.
5 MinutesEnd
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Risk Assessment
1. Identify 2 hazards: the possible accident.
2. Their risks: the probability of them happening.
3. Your precautions: what you will do to reduce these risks.
10 MinutesEnd
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References
• Books:
– [Title], [Author], [Year Published]
• Webpages:
– [Title], [Author], [Date Accessed]
10 MinutesEnd
NOT Nelson Thornes –that’s the publisher!