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Exercise Questions and Answers Q1: State whether the statements given below are True [T] or False [F]. Correct the false statement(s).(i) Oxygen gas is more soluble in hot water rather than in cold water.(ii) A mixture of sand and water is a solution.(iii) The amount of space occupied by any object is called its mass.(iv) … Read more

Exercise Questions and Answers Q1: Consider the following reaction where two substances, A and B, combine to form a product C: A + B → C. Assume that A and B cannot be broken down into simpler substances by chemical reactions. Which of the following statements is correct?(i) A, B, and C are all compounds … Read more

Exercise Questions and Answers Q1: Choose the correct option. The primary difference between solids and liquids is that the constituent particles are:(i) closely packed in solids, while they are stationary in liquids.(ii) far apart in solids and have fixed position in liquids.(iii) always moving in solids and have fixed position in liquids.(iv) closely packed in … Read more

Exercise Questions and Answers Q1: (i) Look at Fig. 6.21 carefully. Vessel R is filled with water.When pouring of water is stopped, the level of water willbe ________.(a) the highest in vessel P(b) the highest in vessel Q(c) the highest in vessel R(d) equal in all three vessels (ii) A rubber sucker (M) is pressed … Read more

Exercise Questions and Answers Q1: Match items in Column A with the items in Column B. A1: Here’s the correct matching: (i) Muscular force → (b) A child lifting a school bag(ii) Magnetic force → (e) A compass needle pointing North(iii) Frictional force → (a) A cricket ball stopping on its own just before touching … Read more

Exercise Questions and Answers Q1: Fill in the blanks:(i) The solution used in a Voltaic cell is called ________.(ii) A current carrying coil behaves like a ________.A1:(i) Electrolyte(ii) Magnet (or Electromagnet) Q2: Choose the correct option:(i) Dry cells are less portable compared to Voltaic cells. (True/False)(ii) A coil becomes an electromagnet only when electric current … Read more

Exercise Questions and Answers Q1: Group the diseases shown in the images as communicable or non-communicable.Cold and flu, Typhoid, Diabetes, Asthma, Chickenpox A1: Q2: From the options given below, identify the non-communicable diseases.(i) Typhoid, (ii) Asthma, (iii) Diabetes, (iv) Measles(a) (i) and (ii), (b) (ii) and (iii), (c) (i) and (iv), (d) (ii) and (iv)A2: … Read more

Exercise Questions and Answers (Keep the Curiosity Alive) Q1: Various parts of a cell are given below. Write them in the appropriate places in the following diagram. Common to all three cells: Nucleus, Cytoplasm, Cell membraneOnly in Plant Cell: Cell wall, ChloroplastOnly in Bacterial Cell: NucleoidA1: Q2: Anandi took two test tubes and marked them … Read more

Exercise Questions and Answers Q1: Why is one side of a puri thinner than the other?A1: One side of a puri may be thinner due to uneven rolling of the dough or the way it is dropped into hot oil. When fried, the dough puffs up as water inside turns to steam, pushing the dough … Read more