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Tag Archives: NCERT Solution for Class 8 Science Chapter

NCERT 8th Class (CBSE) Science: Reaching the Age of Adolescence

Reaching the Age of Adolescence

Question: What do you understand by ‘puberty’? Answer: The stage of life when the body becomes capable of reproduction is known as puberty. Question: Why is looking after physical health more important at adolescent age? Answer: Walking, jogging, aerobics, outdoor games etc, are good for the growing adolescent body. Question: Discuss the …

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NCERT 8th Class (CBSE) Science: Reproduction

Gender

Question: Why is reproduction important? Answer: Reproduction is important for producing new individuals of the same kind. Question: How is sexual reproduction different from asexual reproduction? Answer: Sexual reproduction requires two parents, one male and one female, to reproduce. Whereas in Asexual reproduction only one parent is required to reproduce. …

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NCERT 8th Class (CBSE) Science: Synthetic Fibres and Plastics

Synthetic Fibres and Plastics

Question: Give two examples each of natural and synthetic fibres. Answer: Natural fibres: Cotton, Silk Synthetic fibres: Rayon, Nylon Question: What is a polymer? Answer: Synthetic fibres are made up of molecules called polymers. Polymers are huge molecules-usually consisting of long chains made from thousand of similar small molecules called monomers. …

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