Jenny Shipway 11/01/2025 Jenny Shipway 11/01/2025

Key Concept: Independent and Dependent Variables

A variable is any value that does/might change during an experiment. Variables can include things like pH, temperature, colour, or the concentration of substances. The amount of time that has passed is a variable, as are rates of reaction.

Tom Whitburn 16/04/2019 Tom Whitburn 16/04/2019

Repeatable or reproducible ? Valid or accurate ? Glossary of vocabulary

A great glossary of vocabulary that applies to Biology questions and answers.

Tom Whitburn 30/01/2017 Tom Whitburn 30/01/2017

Tips and Practice Questions for the Practical component of the Theory papers - A-level Biology

How to improve your answers to questions about practicals in A-level Biology exam questions.

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Tom Whitburn 29/12/2016 Tom Whitburn 29/12/2016

How to do Tables and Graphs - terrific guidance from Exam Boards for A-level Biology

There is plenty of excellent guidance on how to plot graphs and draw tables in the OCR practical booklet ..... pdf

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Tom Whitburn 21/12/2016 Tom Whitburn 21/12/2016

Precise but not accurate ? Language of Measurement - crucial for Biology Practical Exam Questions

Precision, control variables, independent variables ? Confusing for many students, however, particularly important now that this year practical skills are assessed in the exam paper.

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