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
Typical age: 11–12 years
“If your child 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?”
0 / 3 mastered
Explore graph
Needs first
- Controlling variablesREQUIRED
KS3 hypothesis formation and full experimental design extends KS2 Upper ability to plan enquiries and control variables
- Planning a Task
Forming scientific hypotheses parallels the structured planning process in Learning-to-Learn
- Structured Opinion Writing
Forming a testable scientific hypothesis with a predicted outcome has structural parallels with the English skill of constructing an opinion piece with a clear point of view and supporting reasoning