‹ GCSE Combined and Separate Science
Required practicals and maths skills
The skills behind every biology practical: units and magnification, means and percentages, rates and graphs, sampling, ratios and planning.
Start: Units and magnification About 20 min, free
Lessons
Practise and test
By the end you can
Use magnification with mm, μm and nm Calculate means, percentage changes and uncertainties Find rates from counts, times and graphs Estimate populations from samples Plan a biology investigation Use the words of working scientifically: variables, anomalies, accuracy, precision, errors and resolution Specifications AQA 8461 (Biology) required practicals and maths requirementsAQA 8464 (Combined Trilogy) biology required practicalsPearson Edexcel 1BI0 and 1SC0 core practicalsOCR Gateway J247 and J250 practical activity groups and maths skills
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