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Coal and Petroleum class 8 Notes Science in PDF are available for free download in myCBSEguide mobile app. The best app for CBSE students now provides Coal and Petroleum class 8 Notes Science latest chapter wise notes for quick preparation of CBSE exams and school-based annual examinations. Class 8 Science notes on chapter 5 Coal and Petroleum Science are also available for download in CBSE Guide website.
Class 8 Science notes Chapter 5 Coal and Petroleum
Download CBSE class 8th revision notes for chapter 5 Coal and Petroleum in PDF format for free. Download revision notes for Coal and Petroleum class 8 Notes and score high in exams. These are the Coal and Petroleum class 8 Notes prepared by team of expert teachers. The revision notes help you revise the whole chapter 5 in minutes. Revision notes in exam days is one of the best tips recommended by teachers during exam days.
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CBSE Class 8 Science Revision Notes Coal and Petroleum
- Natural Resources: Resources include everything provide by the nature. They form the wealth of a country.
- Types of Natural Resources:
(i) Inexhaustible: There are some resources that are present unlimited in nature and will not be exhausted even if used continuously. Example: Sunlight, Air.
(ii) Exhaustible: These resources are limited and can soon get exhausted because of their excessive use. Example: Forests, wildlife, minerals, coal, petroleum, etc.
- Coal, petroleum and natural gas are fossil fuels.
- Fossil fuels were formed from the dead remains of living organisms millions of years ago.
- Fossil fuels are exhaustible resources.
- Coke, coal tar and coal gas are the products of coal.
- Petroleum gas, petrol, diesel, kerosene, paraffin wax, lubricating oil are obtained by refining petroleum.
- Coal and petroleum resources are limited. We should use them judiciously.
- Refining: Petroleum is mixture of various constituents such as petroleum gas, petrol, diesel, lubricating oil, paraffin wax, etc. Refining is the process of refracting the various constituents / fractions of petroleum. It carried out in a petroleum refinery.
- Natural Gas: A very important fuel as it easy to transport through pipes and can be compressed and stored under high pressure as Compressed Natural Gas. It causes no pollution and has high calorific value.
Coal and Petroleum class 8 Notes Science
Coal and Petroleum class 8 Notes Science. CBSE quick revision note for class 8 Science, Chemistry, Maths, Biology and other subject are very helpful to revise the whole syllabus during exam days. The revision notes covers all important formulas and concepts given in the chapter. Even if you wish to have an overview of a chapter, quick revision notes are here to do if for you. These notes will certainly save your time during stressful exam days.
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