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Selected topic Controlling variables (age 11+) Science · Scientific Inquiry · view full details
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Science·Scientific Inquiry·meta

Controlling variables (age 11+)

Form a testable scientific hypothesis linking an independent variable to a predicted outcome, plan a full investigation identifying independent, dependent, and control variables, sample size, and risk assessment

Suggested ages 11–12

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Evidence of understanding

  • Writes a hypothesis in the form 'I predict that [IV] will affect [DV] because...' supported by scientific reasoning
  • Identifies and labels the independent variable, dependent variable, and at least three control variables
  • Plans repeat readings and an appropriate sample size, and identifies relevant hazards with control measures

Assessment prompt

If Controlling variables (age 11+) wanted to investigate whether temperature affects how quickly sugar dissolves, could they write a clear prediction, state exactly what they would change and measure, list three things to keep the same, and identify any safety steps?

Standards alignment

KS3.Sci.WS.SA.1GB · uk-nc-2013

Ask questions and develop lines of enquiry

The national curriculum in England: Key stages 1 and 2 framework document · KS3

KS3.Sci.WS.SA.2GB · uk-nc-2013

Make predictions

The national curriculum in England: Key stages 1 and 2 framework document · KS3