Class 4 Exam  >  Class 4 Notes  >  EVS for Class 4 (Our Wondrous World: New NCERT)  >  Chapter Notes: How Things are Made

How Things are Made Class 4 Notes EVS Chapter 8 Free PDF

Introduction

We learnt in Grade 3 that the things around us are made from different materials. But have you ever wondered how these things are made?

Let’s find out with Pihu how paper is made.

One Sunday, Pihu was happily painting in her drawing book. Her mother was reading the newspaper. When Pihu looked up, she saw a picture of trees on the front page of the newspaper. She became curious and started thinking about how paper is made from trees.How Things are Made Class 4 Notes EVS Chapter 8 Free PDF

Making Recycled Paper

Paper is made from materials like wood pulp, but we can also create it from old paper to save trees. How Things are Made Class 4 Notes EVS Chapter 8 Free PDFPihu learned to make recycled paper through these simple steps:

  • Tear old newspapers into small pieces and soak them in water with fenugreek seeds overnight. The seeds help bind the paper.
  • Mash the soaked paper and seeds into a wet mixture using a grinder or your hands.
  • Spread the mixture on a flat surface and roll it into thin sheets.
  • Leave the rolled sheets of paper to dry. Your recycled paper is ready!
  • The paper we see in books looks different from recycled paper as it is made from wood pulp. Making paper requires many trees, water, and energy, so we should use it carefully.How Things are Made Class 4 Notes EVS Chapter 8 Free PDF

Activity 2- Let's Explore Natural Colour Experiment

You can make recycled paper colourful by using natural ingredients from plants, such as leaves, roots, or flowers. Thus, the produced natural dyes are safe to use.

  • Cut recycled paper into equal pieces.
  • Use natural ingredients like turmeric, spinach, beetroot, or henna to colour the paper.
  • For instance, turmeric gives a dull yellow colour.
  • Observe and note the colour and brightness (dull or bright) of each piece.
  • Natural dyes are made from different parts of a plant, including the leaf, flower, root, seed, stem, etc.

Question for Chapter Notes: How Things are Made
Try yourself:
What can be used to color recycled paper?
View Solution

A Special Gift

Pihu created a lovely greeting card from recycled paper and gave it to her mother, who really appreciated it.

  • These creations are special because you make them and help to reuse and repurpose materials.How Things are Made Class 4 Notes EVS Chapter 8 Free PDF

Activity 3- Let’s Explore! Make a card or mask using recycled paper.

Q: Make a greeting card, a paper mask, or any item using recycled paper.
Ans: 
Students, please try this question on your own.
Suggestion:

  • Use the recycled paper you made to create something fun, like a greeting card or a paper mask.
  • For a greeting card: Fold the paper, draw a nice picture, and write a message. You can colour it with natural dyes.How Things are Made Class 4 Notes EVS Chapter 8 Free PDF
  • For a paper mask: Cut the paper into a mask shape, add designs, and make holes for eyes. Tie a string to wear it.How Things are Made Class 4 Notes EVS Chapter 8 Free PDF
  • Be creative and decorate your item with natural colours or patterns!

Did You Know?

  • The paper used in books is made from wood pulp.
  • For this, many trees are cut down.
  • Making paper also uses a lot of water and energy.

Be Responsible

  • Use paper wisely and only when needed.
  • Reusing and recycling paper helps save trees and protect the environment.How Things are Made Class 4 Notes EVS Chapter 8 Free PDF

Did You Know?

In olden times, people did not use paper like we do today. They wrote on cloth, leaves, and wooden boards.
In India, people used special palm leaves called talapatra for writing. Today, we can use eco-friendly materials like banana fibre to make paper.
These materials help save trees and keep the environment safe.

Activity 4- Types of Paper and Uses


Observe different types of paper like writing paper, newspaper, art paper, cardboard, and tissue paper. Paste small pieces of these papers and write their uses.

How Things are Made Class 4 Notes EVS Chapter 8 Free PDF

Ans: Students, please try this question on your own.
Suggestion: Collect small pieces of different papers. Paste them in your notebook and write their uses. We use different kinds of paper for various purposes. For instance:How Things are Made Class 4 Notes EVS Chapter 8 Free PDF

Did You Know?

The Braille system helps people who can't see to read and write. It uses small raised bumps on paper that can be felt with the fingers. These bumps stand for letters, numbers, and punctuation marks, allowing visually impaired people to read and write on their own.

Making Responsible Choice

In our daily lives, we can adopt a 5-step plan to minimise waste, known as the 5Rs of waste management:

  • Refuse: Decline items that create waste, such as single-use paper cups.
  • Reduce: Use paper wisely, like writing on both sides of a sheet.
  • Reuse: Use items multiple times, like reusing a gift bag.
  • Repurpose: Find new uses for old paper, like making toys or decorations from newspapers.
  • Recycle: Transform old paper into new paper, such as making recycled paper.

Activity 5: Let's Learn About the 5 R's in Our Daily Life

Q: Discuss the following situations with your classmates and write which of the 5Rs (Refuse, Reduce, Reuse, Repurpose, Recycle) each belongs to:
How Things are Made Class 4 Notes EVS Chapter 8 Free PDF

Ans:
How Things are Made Class 4 Notes EVS Chapter 8 Free PDF

Let’s Have Fun with Paper!

We can make many fun and useful things using old paper.
Here are some cool ideas to create toys and decorations with used newspapers.How Things are Made Class 4 Notes EVS Chapter 8 Free PDF

Let’s get creative and give old paper a new life!

Question for Chapter Notes: How Things are Made
Try yourself:
What did Pihu create for her mother?
View Solution

Difficult Words

  • Recycle: To change old items, like paper, into new products.
  • Pulp: A soft, wet blend created from crushed paper or wood.
  • Fenugreek: A type of seed that acts as a binding agent in making recycled paper.
  • Natural dyes: Colours made from plants, such as turmeric or spinach, which are safe to use.
  • Braille: A system of raised dots on paper that allows visually impaired people to read.
  • Talapatra: Palm leaves that were historically used for writing.
  • Repurpose: To find a new use for something old, like making toys from newspapers.
  • Environment: The surroundings we live in, including trees, water, and air. Using eco-friendly materials like banana fibre for paper helps save trees and protect our environment.
  • Refuse: Saying 'no' to items that create waste, such as single-use paper cups.
  • Reduce: Using items wisely to lessen the waste we produce, like writing on both sides of paper.
  • Reuse: Using an item multiple times before throwing it away, such as reusing a gift bag for another occasion.
  • Repurpose: Finding new and creative ways to use items, like making toys or decorations from old newspapers.
  • Recycle: A process that transforms items into new products, such as turning old newspapers into handmade paper.

The document How Things are Made Class 4 Notes EVS Chapter 8 Free PDF is a part of the Class 4 Course EVS for Class 4 (Our Wondrous World: New NCERT).
All you need of Class 4 at this link: Class 4
21 videos|198 docs|10 tests

FAQs on How Things are Made Class 4 Notes EVS Chapter 8 Free PDF

1. What are the main steps involved in the manufacturing process of a product?
Ans. The main steps involved in the manufacturing process typically include designing the product, sourcing raw materials, production or assembly, quality control, and distribution. Each step is crucial to ensure that the final product meets quality standards and customer expectations.
2. How do different materials affect the manufacturing process?
Ans. Different materials can significantly impact the manufacturing process as they have unique properties. For instance, metals may require machining, while plastics might be molded. The choice of material influences the method of production, cost, and the final quality of the product.
3. Why is quality control important in manufacturing?
Ans. Quality control is essential in manufacturing because it ensures that the products meet specific standards and specifications. This process helps identify defects or issues early, reduces waste, and improves customer satisfaction by delivering reliable products.
4. What role does technology play in the manufacturing process?
Ans. Technology plays a vital role in modern manufacturing by enhancing efficiency and precision. Automation, computer-aided design (CAD), and robotics streamline production processes, reduce human error, and allow for more complex designs to be produced efficiently.
5. How can sustainable practices be integrated into manufacturing?
Ans. Sustainable practices can be integrated into manufacturing by using eco-friendly materials, reducing waste through recycling and efficient processes, and implementing energy-saving technologies. Companies can also focus on sustainable sourcing to ensure their operations have a minimal environmental impact.
Related Searches

shortcuts and tricks

,

Summary

,

Previous Year Questions with Solutions

,

MCQs

,

practice quizzes

,

Viva Questions

,

Exam

,

Sample Paper

,

Important questions

,

How Things are Made Class 4 Notes EVS Chapter 8 Free PDF

,

How Things are Made Class 4 Notes EVS Chapter 8 Free PDF

,

study material

,

Semester Notes

,

Objective type Questions

,

Extra Questions

,

video lectures

,

ppt

,

pdf

,

mock tests for examination

,

Free

,

past year papers

,

How Things are Made Class 4 Notes EVS Chapter 8 Free PDF

;