Skip to content

Log in Sign up free

Loading…

Home
Subjects
Past papers
Key terms
Pricing

My courses

Select your courses

Loading…

Subjects

Biology
Business
Chemistry
Citizenship Studies
Classics
Combined Science
Computer Science
Design and Technology
English Language
English Literature
Film Studies
Food Preparation and Nutrition
Geography
History
Mathematics
Media Studies
Physical Education
Physics
Psychology
Religious Studies
Sociology
Statistics

Resources

Browse courses
Past papers
Key terms & definitions
Pricing

About

Sign up
Log in
Privacy Policy
Terms of Service

© 2026 GradeGen

Not affiliated with any exam board.

Experimental control — OCR GCSE Combined Science A Definition

Home
Combined Science
Key terms
Experimental control

GCSE Combined Science · key term

Experimental control

Definition

A comparison arrangement used to show what happens without the treatment being investigated.

Used by OCR

How each exam board covers it

OCR GCSE Combined Science A · J250

Specification B1.4d · Biology Paper 1

Water does not, so the plant with water provides an experimental control. Keep the plants under the same bright light, at the same temperature, for several hours. Then test a leaf from each plant for starch.
Revise: Investigating Photosynthesis

OCR Combined Science A past papers

Related key terms

Control variable
Dependent variable
Destarching
Independent variable
Photosynthesis

Get more free notes every week

Create a free account to keep every note you open and track your progress.

Create free account Log in

Variegated leaf