A level
A level revision quizzes
3109 ready‑made A level quiz sets across 14 subjects. Choose your subject, then your exam board, and host a lesson's quiz live — students answer on their own devices.
Table 4 · Choice
Which gas makes up ~78% of the air?
AOxygen
BNitrogen
CCarbon dioxide
DArgon
Answer · CLS-317
Which gas makes up ~78% of the air?
AOxygen
BNitrogen
CCarbon dioxide
DArgon
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Every A level subject has its own folder per exam board, because each board's specification is organised differently. Open a subject to pick your board, then a unit and a lesson set.
A level subjects
Biology
3 exam boards (AQA, OCR, Pearson Edexcel) · 247 lesson setsOpen BiologyBusiness
3 exam boards (AQA, OCR, Pearson Edexcel) · 233 lesson setsOpen BusinessChemistry
3 exam boards (AQA, OCR, Pearson Edexcel) · 229 lesson setsOpen ChemistryComputer Science
2 exam boards (AQA, OCR) · 149 lesson setsOpen Computer ScienceEconomics
3 exam boards (AQA, OCR, Pearson Edexcel) · 241 lesson setsOpen EconomicsEnglish Literature
3 exam boards (AQA, OCR, Pearson Edexcel) · 176 lesson setsOpen English LiteratureFurther Maths
3 exam boards (AQA, OCR, Pearson Edexcel) · 255 lesson setsOpen Further MathsGeography
3 exam boards (AQA, OCR, Pearson Edexcel) · 243 lesson setsOpen GeographyHistory
3 exam boards (AQA, OCR, Pearson Edexcel) · 251 lesson setsOpen HistoryMaths
3 exam boards (AQA, OCR, Pearson Edexcel) · 320 lesson setsOpen MathsPhysics
3 exam boards (AQA, OCR, Pearson Edexcel) · 224 lesson setsOpen PhysicsPolitics
2 exam boards (AQA, Pearson Edexcel) · 120 lesson setsOpen PoliticsPsychology
3 exam boards (AQA, OCR, Pearson Edexcel) · 274 lesson setsOpen PsychologySociology
2 exam boards (AQA, OCR) · 147 lesson setsOpen Sociology