Chapter 6 Substances in Daily Use Solutions

Maharashtra State Board Class 6 Science Solutions Chapter 6 Substances in Daily Use

Class 6 Science Chapter 6 Substances in Daily Use Textbook Questions and Answers

1. Fill in the blanks using proper works:

Question a.
Rubber made by vulcanization is a …………… material.
Answer:
hard

Question b.
Man-made materials are made by …………… natural materials.
Answer:
processing

Question c.
…………… thread was developed simultaneously in New York and London.
Answer:
Nylon

Question d.
Rayon is also known as …………….
Answer:
synthetic silk

2. Answer the following questions.

Question a.
Why did the need for man-made materials arise?
Answer:
The need for man-made materials arose due to the following reasons:

c

Question b.
Which are the natural materials obtained from plants and animals?
Answer:
Leather, jute, wool, cotton, silk are the natural substances obtained from plants and animals.

Question c.
What is vulcanization?
Answer:

Question d.
Which natural materials are used to obtain fibres?
Answer:
Cotton, wood pulp and various hydrocarbons obtained from mineral oils are used to obtain fibres.

3. What are we used for?

Question a.
What are we used for?
Answer:

4. How is paper manufactured? Write in your own words.

Question a.
How is paper manufactured? Write in your own words.
Answer:
Coniferous trees like pine trees are used to make paper.

5. Give scientific reasons.

Question a.
We must use cotton clothes during summer.
Answer:

Question b.
We must observe economy in the use of materials.
Answer:

Question c.
Saving paper is the need of the hour.
Answer:

Question d.
Man-made materials have more demand.
Answer:

Question e.
Humus is a natural material.
Answer:

6. Find out.

Activity:

Fill in the blanks using proper works.