Chapter 16 Floatation TEXT BOOK QUESTIONS Question 1. Why is it difficult to hold a school bag having a strap made of a thin and strong string ? Answer: It is…
Chapter 15 Improvement in Food Resources TEXT BOOK QUESTIONS Question 1. What do we get from cereals, pulses, fruits and vegetables ? Answer: Cereals: Mostly carbohydrates Pulses: Mostly proteins Fruits:…
Chapter 14 Natural Resources TEXT BOOK QUESTIONS Question 1. How is our atmosphere different from the atmosphere of Venus and Mars ? Answer: Atmosphere over Earth Atmosphere over Venus and…
Chapter 13 Why Do we Fall Ill TEXT BOOK QUESTIONS Question 1. State any two conditions essential for good health. Complete physical fitness free from any disease. Perfect mental (and…
Chapter 12 Sound TEXT BOOK QUESTIONS Question 1. Explain how sound is produced by your school bell. …
Chapter 11 Work, Power and Energy TEXT BOOK QUESTIONS Question 1. A force of 7 N acts on an object. The displacement is say 8 m in the direction of…
Chapter 10 Gravitation TEXT BOOK QUESTIONS Question 1. State the universal law of gravitation. (CBSE Sample Paper, CBSE 2010, 2011, 2012, 2013, 2015) Answer: The force of attraction between two…
Chapter 9 Force and Laws of Motion TEXT BOOK QUESTIONS Question 1. Which of the following has more inertia ? (a) a rubber ball and a stone of the same…
Chapter 8 Motion TEXT BOOK QUESTIONS Question 1. An object has moved through a distance. Can it have zero displacement ? If yes, support your answer with an example. (CBSE…
Chapter 7 Diversity in Living Organisms TEXT BOOK QUESTIONS Question 1. Why do we classify organisms ? (CCE 2012) Answer: Identification is not possible without any system of classification. Classification…