Combined Science GCSE
Formation over millions of years
What Formation over millions of years means in Combined Science GCSE, as defined for AQA.
Definition of Formation over millions of years
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Reference: AQA
Plankton and other tiny marine organisms died, sank into mud and were buried, and without oxygen decay was incomplete, so heat and pressure slowly converted the remains into crude oil.
Topics that use Formation over millions of years
- Crude oil, hydrocarbons and alkanes (AQA GCSE)
Related terms
- Crude oil
- Finite resource
- Fractional distillation
- General formula CnH2n+2
- Homologous series
- Non-renewable resource
- Saturated hydrocarbons
- Ancient biomass
Using Formation over millions of years in the exam
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