CBSE Class 8 Science Coal and Petroleum — Worksheets & PDF Download

This chapter explains how natural resources are categorised and focuses on the formation, extraction, and everyday uses of fossil fuels like coal and petroleum. It highlights the difference between resources that last forever and those that get depleted over time. Students learn how coal formed from ancient forests and how petroleum originated from marine organisms buried under the earth for millions of years. The text also covers the various useful substances obtained from these raw materials, such as coke and different fuels derived through refining. Understanding these processes is crucial because fossil fuels power our homes, vehicles, and factories, yet their reserves are strictly limited. Burning them also releases harmful gases into the atmosphere. Therefore, the chapter emphasises the urgent need to conserve these non-renewable resources and reduce our daily dependence on them to protect the environment for future generations.