Earth, Moon, and the Sun 1. In Fig. 12.17, how many hours of sunlight do the North Pole and the…
Light: Shadows and Reflections 1. Which of the following are luminous objects? Mars, Moon, Pole Star, Sun, Venus, Mirror Answer: …
Life Processes in Plants 1. Complete the following table Answer: 2. Imagine a situation where all the organisms that carry…
Life Processes in Animals 1. Complete the journey of food through the alimentary canal by filling up the boxes with…
Measurement of Time and Motion 1. Calculate the speed of a car that travels 150 metres in 10 seconds. Express…
Heat Transfer in Nature 1. Choose the correct option in each case. (i) Your father bought a saucepan made of…
Changes Around Us: Physical and Chemical 1. Which of the following statements are the characteristics of a physical change? (i)…
Adolescence: A Stage of Growth and Change 1. Ramesh, an 11-year-old boy, developed a few pimples on his face. His…
The World of Metals and Non-metals 1. Which metal is commonly used to make food packaging materials as it is…
Electricity: Circuits and their Components 1. Choose the incorrect statement. (i) A switch is the source of electric current in…