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  Class 8 Geography Chapter 5 – Industries Introduction The notebooks that the students use in order to jot down their notes are manufactured after a long process. The journey of this notebook starts from a tree. Those who wish to manufacture paper, cut down the trees and transport it to any pulp mill. At the mill, the wood of trees is processed using machines and gets converted into pulp made of wood. The mill workers mix the pulp with chemicals. The mix is finally converted into paper with the help of machines. These pages are then bound into a notebook, packed well and are sent to stationary shops to be sold.  Class 08th English Lessons Class 08th English MCQ Take Free MCQ Test English Class 08th Science Lessons Take Free MCQ Test Science Class 08th Hindi Lessons Take Free MCQ Test Hindi CBSE CLASS 08th Social Science Lessons Take Free MCQ Test History   Manufacturing or Secondary Activities are the process through which raw materials are converted into products. These products can

 Important Terms On Class 8 Science Chapter 4 1. Physical Properties Of Metals And Non-Metals The first part of Class 8 Science Chapter 4 content focuses on the importance of metallurgy which is related to materials science and engineering that studies the physical and chemical behaviour of metallic elements, their inter-metallic compounds, and their mixtures. As you know, metals can be distinguished from non-metals based on their properties. Have you ever seen a blacksmith beating an iron piece like a spade, an axe or other materials? Do you find any changes in the shape of these articles on beating? Your answer will be ‘yes’. Remember, the property of metals by which they can be beaten into you thin sheets is called ‘malleability’. But materials like coal and pencil lead do not show this property. 2. Metals Are Ductile And Sonorous Have you seen wire of coal? Your answer will be ‘no’. Generally, we see the copper wire and aluminium wire. Remember, the property of metal by which it ca