Class 8ScienceCoal and Petroleum

Formation of Fossil Fuels

Fossil fuels formed from remains of organisms buried millions of years ago. Coal: formed from ancient forests buried under water/mud, covered with more sediment, slowly converted to coal by heat and pressure (millions of years). Types: Peat → Lignite → Bituminous → Anthracite (increasing carbon content and heating value). Petroleum: formed from marine organisms buried in sea bed.

How to study this topic

Read the core explanation once without solving.
Open the formula links below and connect them with the topic meaning.
Practice the 10 example pages one by one.
Use the AI ask page for text, voice or image-based doubts.

10 example pages

Concept check 1

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Definition to application 2

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Formula warm-up 3

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Reasoning practice 4

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Board-style short answer 5

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Mistake correction 6

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Visual interpretation 7

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Applied word problem 8

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Revision challenge 9

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Exam recap 10

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