Combined Science GCSE
Control variables and reliability
What Control variables and reliability means in Combined Science GCSE, as defined for AQA.
Definition of Control variables and reliability
Check what you remember
Read the wording for your board, then hide it and explain Control variables and reliability in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Keeping temperature, volume and other conditions constant, and repeating to improve reliability.
Topics that use Control variables and reliability
Related terms
- Collision theory
- Hypothesis development
- Measuring rate of reaction
- Required practical skills
- Variables and fair testing
- Rate graphs and gradients
Using Control variables and reliability in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Combined Science questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Combined Science GCSE termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge