Science -

Class 8 Science NCERT Solutions Chapter 14 – Chemical Effects of Electric Current

dktanwar225@gmail.com / July 13, 2025

Class 8 Science NCERT Solutions Chapter 14: Chemical Effects of Electric Current Question 1. Fill in the blanks: Most liquids that conduct electricity are solutions of……..,……………and ………….. The passage of an electric current through a solution causes…………..effects. If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the………..terminal of the […]

Class 8 Science NCERT Solutions Chapter 13 – Sound

dktanwar225@gmail.com / July 13, 2025

Class 8 Science NCERT Solutions Chapter 13: Sound Question 1. Choose the correct answer: Sound can travel through (a) gases only (b) solids only (c) liquids only (d) solids, liquids and gases Answer. (d) solids, liquids and gases. Question 2. Voice of which of the following is likely to have minimum frequency? (a) Baby girl (b) Baby boy (c) A man (d) A woman

Class 8, Science

Class 8 Science NCERT Solutions Chapter 12 – Friction

dktanwar225@gmail.com / July 13, 2025

Class 8 Science NCERT Solutions Chapter 12: Friction Question 1. Fill in the blanks: Friction opposes the…………….between the surfaces in contact with each other. Friction depends on the.…………..of surfaces. Friction produces ………………. A sprinkling of powder on the carrom board.…………….friction. Sliding friction is……….than the static friction. Answer. relative motion smoothness (or irregularities or nature) heat reduces

Class 8, Science

Class 8 Science NCERT Solutions Chapter 11 – Force and Pressure

dktanwar225@gmail.com / July 13, 2025

Class 8 Science NCERT Solutions Chapter 11: Force and Pressure Question 1. Give two examples of each of situations in which you push or pull to change the state of motion of objects. Answer. (1) If a rubber ball or marble is placed on a very smooth surface and given a small push, it starts

Class 8, Science

Class 8 Science NCERT Solutions Chapter 10 – Reaching the Age of Adolescence

dktanwar225@gmail.com / July 12, 2025

Class 8 Science NCERT Solutions Chapter 10: Reaching the Age of Adolescence Question 1. What is the term used for chemical secretions of endocrine glands responsible for changes taking place in the body? Answer. The term used for secretions of endocrine glands is hormones, which are responsible for various changes taking place in the body.

Class 8, Science

Class 8 Science NCERT Solutions Chapter 9 – Reproduction in Animals

dktanwar225@gmail.com / July 12, 2025

Class 8 Science NCERT Solutions Chapter 9: Reproduction in Animals Question 1. Explain the importance of reproduction in organisms. Answer. The production of new individuals from their parents is known as reproduction. Reproduction is very important as it ensures the continuation of a species. If the process of reproduction does not exist, the species would

Class 8, Science

Class 8 Science NCERT Solutions Chapter 8 – Cell Structure and Functions

dktanwar225@gmail.com / July 12, 2025

Class 8 Science NCERT Solutions Chapter 8: Cell Structure and Functions Question 1. Indicate whether the following statements are True (T) or False (F): (a) Unicellular organisms have a one-celled body. (T/F) (b) Muscle cells are branched. (T/F) (c) The basic living unit of an organism is an organ. (T/F) (d) Amoeba has an irregular shape. (T/F) Answer. (a) True

Class 8, Science

Class 8 Science NCERT Solutions Chapter 7 – Conservation of Plants and Animals

dktanwar225@gmail.com / July 12, 2025

Class 8 Science NCERT Solutions Chapter 7: Conservation of Plants and Animals Question 1. Fill in the blanks: A place where animals are protected in their natural habitat is called…………. Species found only in a particular area are known as………… Migratory birds fly to faraway places because of…………… changes. Answer. wildlife sanctuary endemic species climatic. Question

Class 8, Science

Class 8 Science NCERT Solutions Chapter 6 – Combustion and Flame

dktanwar225@gmail.com / July 12, 2025

Class 8 Science NCERT Solutions Chapter 6: Combustion and Flame Question 1. List conditions under which combustion can take place. Answer. Conditions under which combustion can take place are as follows : The presence of air (oxygen). The ignition temperature should be reached. A source of inflammable substance. Question 2. Fill in the blanks: Burning

Class 8, Science

Class 8 Science NCERT Solutions Chapter 5 – Coal and Petroleum

dktanwar225@gmail.com / July 11, 2025

Class 8 Science NCERT Solutions Chapter 5: Coal and Petroleum Question 1. What are the advantages of using CNG and LPG as fuels? Answer. The advantages of using CNG and LPG as fuels are as follows: These are clean fuels. These are low-cost fuels. These are available easily. These can be used directly for burning