← Combined Science syllabus

WalesCombined Science

Unit 7: Practical and enquiry skills

3 dot points across 3 inquiry questions. Click any dot point for a focused answer with worked past exam questions where available.

How do you analyse results with a graph and evaluate an investigation?

Analysing results: plotting and interpreting graphs, drawing a conclusion, and evaluating the reliability and validity of an investigation.
A concise overview of the analysis and evaluation skills for the WJEC GCSE Science Double Award practical assessment (Unit 7), covering plotting and interpreting graphs, drawing a conclusion, and evaluating reliability, accuracy and how to improve a method.
9 min answer →

How do you take and record measurements accurately in a practical?

Carrying out an investigation: choosing apparatus, taking accurate and precise measurements, repeating readings, and recording results in a table.
A concise overview of the carrying-out skills for the WJEC GCSE Science Double Award practical assessment (Unit 7), covering choosing apparatus, accuracy and precision, repeating readings and anomalies, and recording results in a clear table.
9 min answer →

How do you plan a fair scientific investigation?

Planning an investigation: the independent, dependent and control variables, a hypothesis, a fair test, and risk assessment.
A concise overview of the planning skills for the WJEC GCSE Science Double Award practical assessment (Unit 7), covering independent, dependent and control variables, writing a hypothesis, designing a fair test, and risk assessment.
9 min answer →