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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
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: 1) Why do the houses in Rajasthan have thick walls and flat roofs? Answer: Houses in Rajasthan have thick walls and flat roofs to suit the hot and dry climate. The thick walls help keep the heat out during the day and maintain cooler temperatures inside. Flat roofs are practical because Rajasthan gets very … 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
NCERT Solutions: 1. Describe the problems faced by the Weimar Republic. Answer: The Weimar Republic faced several problems: Political Instability: It was often seen as weak because of the frequent changes in government and the inability to form stable coalitions. Treaty of Versailles: The harsh terms of the treaty, which included massive reparations, loss of … Read more
NCERT Solutions In-Text Questions Answers: Q1. What do we get from cereals, pulses, fruits, and vegetables? Ans: Cereals primarily provide carbohydrates, which are essential for energy. Pulses are rich in proteins, crucial for growth and body repair. Fruits and vegetables are key sources of vitamins, minerals, and fibers, all necessary for maintaining overall health and … Read more