Class 6 Science
Answer: 1 True, 2 False, 3 False, 4 True, 5 True, 6 False, 7 False
Question 1: Classify the following fibres as natural or synthetic: Nylon, Wool, Cotton, Silk, Polyester and Jute
Answer: Nylon and polyester are synthetic fibre. Wool, cotton, silk and jute are natural fibre.
Question 2: From which parts of the plant cotton and jute are obtained?
Answer: Cotton is obtained from fruits of cotton plant and jute is obtained from stem of the jute plant.
Question 3: Name two items that are made from coconut fiber.
Answer: Rope and doormats.
Question 4: Explain the process of making yarn from fiber.
Answer: Fibre is made from yarn by spinning. Spinning is done manually as well as using machines by twisting fiber; like rope making.
Question 5: Plant fibres are obtained from------ and------
Answer: Plants, animals
Question 6: Animals fibres are-------- and -------
Answer: Wool, silk
Question 1: Which part of plants give us jute and coir?
Answer: Jute comes from the stem of jute plants, while coir comes from the husk of coconut fruit.
Question 2: What is ginning?
Answer: The process of removing cotton seeds from cotton pods is called ginning.
Question 3: What is spinning?
Answer: The process of making yarn from fibre is called spinning.
Question 4: Mention uses of jute fibre?
Answer: Jute is used mainly for making gunny bags, shopping bags, ropes, carpets, etc.
Question 5: Write the name of some man-made fibre?
Answer: Rayon, nylon, polyester, acrylic, etc.
Question 6: Write the name of animal fibre?
Answer: Silk and wool
Question 7: What is caterpillar?
Answer: The larva of silk-moth is called caterpillar.
Question 8: Why do we need to wear clothes?
Answer: Clothes protect us from heat, cold and rain. Hence, we need to wear clothes.
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