rmahanti

Tissues

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In-Text Questions Answers 1. What is a tissue? A tissue is a group of similar cells that work together to perform a specific function in an organism. This organization allows the cells to be more efficient in carrying out tasks like movement, support, or transporting nutrients. 2. What is the utility of tissues in multi-cellular … Read more

Chap 3 Ruling the Countryside

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Let’s Recall Match the following: ryot – peasant mahal – village nij – cultivation on planter’s own land ryoti – cultivation on ryot’s lands Fill in the blanks: (a) Growers of woad in Europe saw indigo as a crop which would provide competition to their earnings. (b) The demand for indigo increased in late eighteenth-century … Read more

Tribals, Dikus and the Vision of a Golden Age

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Let’s Recall Fill in the blanks: (a) The British described the tribal people as wild and savages. (b) The method of sowing seeds in jhum cultivation is known as broadcasting. (c) The tribal chiefs got land titles in central India under the British land settlements. (d) Tribals went to work in the tea plantations of … Read more

Friction

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1. Fill in the blanks. (a) Friction opposes the motion between the surfaces in contact with each other. (b) Friction depends on the nature of surfaces. (c) Friction produces heat. (d) Sprinkling of powder on the carrom board reduces friction. (e) Sliding friction is less than the static friction. 2. Four children were asked to … Read more

Socialism in Europe and the Russian Revolution

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List two differences between the capitalist and socialist ideas of private property. Capitalist Idea: Private property is owned by individuals or businesses who are concerned with personal gain. They control the means of production, and profits are kept by the owners. Socialist Idea: Private property is controlled by society as a whole, meaning that the … Read more

chap 1 MATTER IN OUR SURROUNDINGS

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1. Which of the following are matter? Answer: Chair, air, almonds, lemon water, smell of perfume are matter because they have mass and occupy space. Love, smell, hate, thought, cold are not considered matter because they do not have mass or occupy space. 2. Give reasons for the following observation: The smell of hot sizzling … Read more

IS MATTER AROUND US PURE?

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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

Chapter 8 – Force and Laws of Motion

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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

Chemical Reactions and Equations

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Q1. Why must a magnesium ribbon be cleaned before burning in air? a) To increase its weight b) To remove the protective layer of oxide on its surface c) To make it look shiny d) To prevent it from burning Answer: b) To remove the protective layer of oxide on its surface Explanation: A magnesium … Read more

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