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1) What is meant by a substance? Answer: A substance is a form of matter that has a uniform and definite composition. It can be either an element or a compound, where all the constituent particles have the same chemical nature. 2) List the points of differences between homogeneous and heterogeneous mixtures. • Homogeneous Mixtures: … Read more
Activity 8.1: Understanding Inertia Objective: To demonstrate the concept of inertia and how it affects the motion of objects. Materials Needed: Carom coins, striker, table. Procedure: 1. Make a pile of similar carom coins on a table. 2. Attempt a sharp horizontal hit at the bottom of the pile using another carom coin or the … Read more
1) Understanding Electric Circuits and Ohm’s Law Background: An electric circuit comprises various components like resistors, batteries, and measuring instruments connected through conductive wires. The flow of electric charge through this setup defines the electric current, measured in amperes (A). Ohm’s Law states that the current through a conductor between two points is directly proportional to … Read more
──────────────────────────────────────────────────────── IN-TEXT QUESTIONS ──────────────────────────────────────────────────────── Question: “Do magnets stick to objects made of certain materials only?” Answer: • Yes. Magnets only stick to materials that have iron, nickel, or cobalt in them (these are called magnetic materials). Objects made of wood, plastic, or glass do not stick to magnets. Question: “Was your prediction correct for all … Read more
1) Why did the children go to Yasmin Khala’s house?Answer: The children went to Yasmin Khala’s house to seek information and advice regarding a broken street light caused by their cricket game. Yasmin Khala had retired from the Municipal Corporation and was knowledgeable about such matters. 2) List four ways in which the work of … Read more
Question 1: You have probably noticed that people in Kalpattu are engaged in a variety of non-farm work. List five of these.Answer: In Kalpattu, a variety of non-farm work is evident among the villagers. Five of these are: Question 2: List the different types of people you read about in Kalpattu who depend on farming. … Read more
NCERT Solutions Intext Questions: Question 1: Do most leaders fulfill their election promises? Answer: Many leaders make big promises during elections to get votes. But after elections, they often forget these promises and do not fulfill them. Question 2: The time is after midnight. An expectant crowd sitting for the past five hours in a … Read more
In-text Questions and Answers: 1. Did you enjoy discovering and exploring the world around you in the Preparatory Stage of school? Answer : Yes, discovering and exploring the world around us during the Preparatory Stage of school is always an enjoyable experience. 2. Have you ever looked up at the night sky and wondered why … Read more
In-text Questions Why the houses in Rajasthan have thick walls and flat roofs? Houses in Rajasthan have thick walls to keep the inside of the house cool during the very hot days. The thick walls stop the sun’s heat from getting in. They have flat roofs because Rajasthan gets very little rain, so there is … Read more
NCERT Solutions : 1) Multiple Choice Questions (i) In which of the following states is the Wular lake located? (a) Rajasthan (c) Punjab (b) Uttar Pradesh (d) Jammu and Kashmir Answer: Wular Lake, renowned for its size and encircling beauty, is situated in Jammu and Kashmir. (ii) The river Narmada has its source at (a) … Read more