Class 8 | Science | Ch 13 |Friction| NCERT Solutions 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 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 Answer: (c) A … [Read more...] about Chapter 13 Sound
Class 8
Chapter 12 Friction
Class 8 | Science | Ch 12 |Friction| NCERT Solutions 1. Fill in the blanks. (a) Friction opposes the _____________ between the surfaces in contact with each other. (b) Friction depends on the _____________ of surfaces. (c) Friction produces __________. (d) Sprinkling of powder on the carrom board ________ friction. (e) Sliding friction is ___________ than the static … [Read more...] about Chapter 12 Friction
Chapter 11 Force and Pressure
Class 8 | Science | Ch 9 |Force and Pressure| NCERT Solutions 1. Give two examples each of situations in which you push or pull to change the state of motion of objects. Answer: 1) If we kick a stationary football kept on the ground, then the football starts moving. The force of our foot makes the stationary football to move. 2) Take a rubber ball and place it on … [Read more...] about Chapter 11 Force and Pressure
Chapter 9 Reproduction in Animals
Class 8 | Science | Ch 9 |Reproduction in Animals| NCERT Solutions 1. Explain the importance of reproduction in organisms. The production of new organism from the existing organism of the same species is known as reproduction.Reproduction is the creation of new living things.It is essential for the survival of species on this earth. So, living organism produce more … [Read more...] about Chapter 9 Reproduction in Animals
Chapter 8 Cell Structure and Functions
Class 8 | Science | Ch 8 | Cell Structure and Functions | NCERT Solutions 1. Indicate whether the following statements are True (T) or False (F). (a) Unicellular organisms have 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 irregular shape. (T/F) Answer: (a) Unicellular organisms … [Read more...] about Chapter 8 Cell Structure and Functions