Class 8 | Science | Ch 4 | Materials : Metals and Non Metals | NCERT Solutions 1.Which of the following can be beaten into thin sheets? (a) Zinc (b) Phosphorus (c) Sulphur (d) Oxygen Answer: (a) Zinc 2. Which of the following statements is correct? (a) All metals are ductile. (b) All non-metals are ductile. (c) Generally, metals are ductile. (d) Some non-metals are … [Read more...] about Chapter 4 Materials : Metals and Non Metals
class 8
Chapter 3 Synthetic Fibres and Plastics
Class 8 Science Chapter 3 | Synthetic Fibres and Plastics NCERT Solutions 1. Explain why some fibres are called synthetic. Answer: Those fibres which are prepared by man using chemicals are called synthetic fibres. They are formed by combination of large number of small molecules joined together. For ex: Rayon, nylon, polyester, acrylic etc. 2. Mark (√ ) the … [Read more...] about Chapter 3 Synthetic Fibres and Plastics
Chapter 2 Microorganisms: Friend and Foe
Class 8 Science Chapter 2 | Microorganisms: Friend and Foe NCERT Solutions 1. Fill in the blanks. (a) Microorganisms can be seen with the help of a ____________. (b) Blue green algae fix __________ directly from air to enhance fertility of soil. (c) Alcohol is produced with the help of __________. (d) Cholera is caused by __________. Answer: (a) Microscope (b) … [Read more...] about Chapter 2 Microorganisms: Friend and Foe
Chapter 17 Stars and the Solar System
Class 8 Science Chapter 17 | Stars and the solar System NCERT Solutions Choose the correct answer in Questions 1-3. 1. Which of the following is NOT a member of the solar system? (a) An asteroid (b) A satellite (c) A constellation (d) A comet Answer: (c) A constellation 2. Which of the following is NOT a planet of the sun? (a) Sirius … [Read more...] about Chapter 17 Stars and the Solar System
Chapter 10 Reaching the Age of Adolescence
Class 8 | Science | Ch 10 | Reaching the Age of Adolescence | NCERT Solutions 1. What is the term used for chemical secretions of endocrine glands for changes taking place in the body? Answer: Hormones are chemical substances secreted by endocrine glands. They are the chemical substances which co-ordinate the activities of living organism and their growth. 2. Define … [Read more...] about Chapter 10 Reaching the Age of Adolescence