Combined Science GCSE
Experimental design and control variables
What Experimental design and control variables means in Combined Science GCSE, as defined for AQA.
Definition of Experimental design and control variables
Check what you remember
Read the wording for your board, then hide it and explain Experimental design and control variables in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A valid investigation tests one factor at a time, such as pondweed and bubble counting, keeping other variables constant.
Topics that use Experimental design and control variables
- Rate of photosynthesis (AQA GCSE)
Related terms
- Choosing scales
- Control variables
- Data presentation
- Diminishing returns
- Enzyme action and denaturation
- Gradient
- Graph interpretation
- Graphical analysis
Using Experimental design and control variables in the exam
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