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GCSE Combined Science · key term
An action taken to prevent or reduce the risk of harm; also called a control measure.
Used by Edexcel
Specification Formulae, equations and hazards · Paper 3, Paper 4
Revise: Hazard symbols and practical risk assessmentA precaution, or control measure, reduces the chance of harm or its possible consequences. It does not necessarily remove the hazard: safety goggles protect the eyes from splashes, but the chemical itself remains hazardous.
Link each precaution to the particular hazard: say what you would do and how it reduces harm.
General rules such as washing hands or tying back hair do not answer every safety question. Choose a precaution relevant to the procedure.
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