Imp Questions For All Chapters – General Science Class 6
Substances in Daily Use
Short Questions
1. What are objects made of?
Answer : Objects are made of substances.
2. Name two natural substances.
Answer : Cotton, wood.
3. Name two man-made substances.
Answer : Plastic, nylon.
4. What is rubber made from?
Answer : Rubber is made from tree sap called latex.
5. Which state in India produces the most rubber?
Answer : Kerala.
6. What is vulcanization?
Answer : Heating rubber with sulphur to make it strong.
7. What is paper made from?
Answer : Paper is made from wood pulp.
8. Which material is used to make glass?
Answer : Sand.
9. Which synthetic fibre is also called ‘synthetic silk’?
Answer : Rayon.
10. What are the two types of natural substances?
Answer : Biotic and abiotic.
11. Give one example of biotic substances.
Answer : Cotton.
12. Give one example of abiotic substances.
Answer : Water.
13. Why should we save paper?
Answer : To save trees.
14. What is nylon used for?
Answer : Making ropes, fishing nets, and clothes.
15. What are pearls obtained from?
Answer : Oysters.
Long Questions
1. Why are man-made materials important?
Answer : Man-made materials are important because they are strong, cheap, and can be made in large amounts. They help us in making clothes, furniture, and daily-use items.
2. How is paper made?
Answer : Paper is made from tree wood. The wood is soaked, turned into pulp, mixed with chemicals, and then pressed into thin sheets to make paper.
3. What is the difference between natural and man-made substances?
Answer : Natural substances are found in nature, like cotton and water. Man-made substances are created by humans, like plastic and cement.
4. Why should we use cotton clothes in summer?
Answer : Cotton clothes absorb sweat and keep the body cool. They allow air to pass through, making them comfortable in hot weather.
5. What are the advantages of synthetic fibres?
Answer : Synthetic fibres are cheap, strong, lightweight, and do not wrinkle. They dry quickly and last a long time, making them useful for many purposes.
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