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Class 4 EVS Chapter 8 How Things are Made Question Answer
How Things are Made Class 4 EVS Question Answer
Our Wondrous World Class 4 EVS Chapter 8 Question Answer โ Class 4 EVS How Things are Made Question Answer
Activity 1 (Page 119)
Make Recycled Paper
1. Collect materials: Old newspapers. some fenugreek seeds (metlu) and water
2. Prepare the paper pulp: Tear the newspapers into small pieces and soak them in water. Put a small quantity of fenugreek seeds in the water and leave it overnight. The fenugreek seeds are used as a binding material.
3. Using a grinder, blend or mash the soaked paper and fenugreek seeds, to create a wet mixture. Soaked paper can also be mashed using hands or any other available tool.
4. Roll out: Spread the paste on a flat base and roll it out into thin sheets.
5. Leave the rolled sheets of paper to dry. Your recycled paper is ready.
Answer:
Follow the given steps in a sequence and do it with the help of your parents.
Activity 2 (Page 120)
Colour and design the paper you have made.
Natural Colour Experiment Cut the recycled paper into pieces of same size. Colour them using natural ingredients mentioned in the table below.
You can use any other natural ingredients as well. Make sure that the quantity of ingredients used is the same for colouring each piece of paper. Write down your observations in the table below.
Answer:
Hint
| Natural ingredient used | Paste a sample of your paper here | Colour and brightness (dull/ bright) |
| Turmeric | Paste here | Yellow, dull |
| Spinach | Paste here | Green, bright |
| Beetroot | Paste here | Reddish purple, dull |
| Henna | Paste here | Greenish- brown, dull |
Activity 3 (Page 121)
Make a greeting card, paper mask or any such item made of recycled paper.
Answer:
Discuss (Page 122)
Question 1.
Do you think that we waste paper?
Answer:
Yes, we often waste paper when we do not use it wisely, like throwing it away after writing just a little, printing things we do not need or using only one side of the sheet.
Question 2.
How can we reduce wastage of paper?
Answer:
We can reduce paper waste by using both sides of the paper, reading on digital devices, reusing old paper for rough work or crafts and recycling paper properly to make new products.
Activity 4 (Page 123)
Different Type of Paper and their uses.
Observe the different types of paper that we use in our daily life, such as writing paper, newspaper, art paper, cardboard and tissue paper. Paste small pieces of different types of paper in the space given below and write their uses.
Answer:
Activity 5 (Page 125)
Discuss the following situations with your classmates and write down which of the 5Rs it belongs to:
Answer:
| Example | 5Rs of Waste Management |
| A family brings their own cloth bags to the grocery store instead of using plastic ones. | Reuse (cloth bags), Refuse (plastic bags) |
| Maya does not use a plastic straw to drink coconut water. | Refuse |
| Rohan uses blank pages of his old notebooks to avoid wastage of paper. | Reduce |
| Sara gives her old books to younger students for their use. | Reuse |
| Kabir paints an old bottle to use as a flower vase. | Repurpose |
| Priya cuts old clothes to make a fun bag for carrying her books. | Repurpose |
| A shopkeeper turns old newspapers into paper envelopes. | Repurpose |
Let Us Reflect (Page 127)
Question 1.
What are some objects that you can make using paper pulp? Ask your teachers and elders for more ideas.
Answer:
Some objects that can be made using paper pulp are:
- Paper bowls or trays
- Greeting cards
- Decorative items like flowers or
- frames
- Recycled paper and notebooks
Question 2.
Write down one step you can take for each of the 5Rs in the boxes given below:
Answer:
5Rs of waste management:
| 5Rs | One Step You Can Take |
| Refuse | Refuse plastic straws or plastic bags. |
| Reduce | Reduce wastage of paper by writing on both sides of paper. |
| Reuse | Reuse cloth bags to carry vegetables and fruits instead of throwing it away after some uses. |
| Repurpose | Repurpose old tin cans or glass bottles into storage boxes like pencil holder. |
| Recycle | Recycle used notebooks and paper scraps properly. |
Question 3.
Discuss the changes you can bring in your daily life by using 5Rs rule to avoid wastage of paper. Complete the table with your ideas for creating these changes.
Answer:
| 5Rs | Ideas to Avoid Wastage of Paper |
| Refuse | Say no to paper flyers or unnecessary printouts. |
| Reduce | Use both sides of the paper when writing or printing. |
| Reuse | Use blank spaces in old notebooks or sheets for rough work or drawing. |
| Repurpose | Turn old newspapers into wrapping paper or craft projects. |
| Recycle | Put used paper in the recycling bin instead of throwing it away. |