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A prerequisite knowledge graph of 1590 learning concepts across 8subjects. Track what you've mastered and see exactly what you're ready to learn next — the topics whose prerequisites you've already met. Built on the Marble Open Skill Taxonomy.

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Controlling variables

Science · Scientific Inquiry · meta

Plan different types of scientific enquiries to answer questions, recognising and controlling variables where necessary

What mastery looks like

  • Independently plan an investigation identifying the independent, dependent, and controlled variables
  • Choose the appropriate type of enquiry for the question (fair test, observation over time, pattern seeking, research)
  • Explain why controlling variables is essential for valid results

Check your understanding

Can Controlling variables plan their own experiment from scratch — deciding what to test, what to measure, what to keep the same, and how many times to repeat it?