Chapter 18 Wastewater Story Q.1. Fill in the blanks: (a) Cleaning of water is process of removing __________ (b) Wastewater released by houses is called __________. (c) Dried __________ is…

Chapter 17 Forests Our Lifeline Q.1. Explain how animals dwelling in the forest help it grow and regenerate. Ans. Animals help in growing and regenerating forests in many ways. Animals…

Chapter 16 Water A Precious Resource Q.1. Mark ‘T’ if the statement is true and ‘F’ if it is false: (a) The freshwater stored in the ground is much more…

Chapter 15 Light Q.1.Fill in the blanks: (a) An image that cannot be obtained on a screen is called ___________ . (b) Image formed by a convex is __________ always…

Chapter 14 Electric Current and its Effects Q.1.Draw in your notebook the symbols to represent the following components of electrical circuits: connecting wires, switch in the ‘OFF’ position, bulb, cell,…

Chapter 13 Motion and Time Q.1.Classify the following as motion along a straight line, circular or oscillatory motion : (i) Motion of your hands while running. (ii) Motion of a…

Chapter 12 Reproduction in Plants Q.1.Fill in the blanks: (a) Production of new individuals from the vegetative part of parent is called ___________.  (b) A flower may have either male…

Chapter 11 Transportation in Animals and Plants Q.1.Match structures given in Column I with functions given in Column II. Ans. Q.2.-Fill in the blanks : (i) The blood from the…

Chapter 10 Respiration in Animals and Plants Q1. Why does an athlete breathe faster and deeper than usual after finishing the race? Answer: During the run, the demand of energy…

Chapter 9 Soil Q1. Tick the most suitable answer in question 1 and 2. In addition to the rock particles, the soil contains (i) Air and water (ii) Water and…