Class 4 Evs - WEST-BENGAL
How Things are Made
The chapter 'How Things are Made' in the Class 4 EVS textbook 'Our Wondrous World' under the West Bengal Board (WBBSE) introduces young students to the fascinating journey of everyday objects. Students learn how raw materials from nature, like plants, animals, and minerals, are transformed into finished products we use daily, such as paper, cloth, sugar, and earthen pots. This chapter is very important for board exams as it builds foundational knowledge about our environment, manufacturing processes, and the importance of using resources wisely. Questions from this chapter test observation skills and understanding of basic production steps.
Start Learning FreeKey Concepts
Raw Materials
Basic natural substances like cotton, wood, and clay that are used to make different finished products.
Paper Making
Paper is made from bamboo, grass, or wood pulp which is crushed, cleaned, and processed in factories.
Cloth Production
Cotton is first picked from plants, spun into yarn using a spinning wheel or machine, and then woven into fabric on a loom.
Pottery
Potters use soft clay from the ground, shape it on a wheel, and bake it in a kiln to make strong earthen pots and utensils.
Sugar Making
Sugar is made from sugarcane juice, which is boiled, cleaned, and crystallized in sugar mills.
Important Formulas
Board Exam Info
In West Bengal Board (WBBSE) Class 4 EVS examinations, this chapter generally carries around 6 to 10 marks. Common question types include matching raw materials with finished products, short descriptive answers on how paper or cloth is made, fill-in-the-blanks, and diagram-based questions showing the steps of making an object.
Frequently Asked Questions
What is the main raw material used to make paper?
Wood, bamboo, and specific types of grass are the main raw materials used to make paper pulp.
How do we get cotton cloth from the cotton plant?
Cotton is picked from plants, spun into yarn or thread, and then woven on looms to make cotton cloth.
Why is it important to save paper?
Paper is made from trees and plants. Saving paper helps in saving trees, which protects our environment and keeps the earth green.
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