1) The process shown in the picture. a) The change of ice into water b) The change of water into water vapour c) The change of water vapour into water d) The change of water into ice 2) Which of the following pictures show the the solid form of water? a) b) c) d) 3) Ice ------------- to become water. a) boils b) evaporates c) melts d) freezes 4) Water vapour turns into -------------- on cooling. a) ice b) steam c) water droplets d) hailstone 5) The water changes from liquid form to gaseous form on -----------. a) Cooling b) Heating c) Freezing d) Melting. 6) We cannot hold liquid water because... a) Liquid water is hard b) Liquid water flows c) Liquid water is very big d) Liquid water is hot 7) Which of the following is the primary source of water? a) River b) Waterfall c) Lake d) Rain 8) The --------- on the mountain tops melt because of the heat of the Sun. a) snow b) water c) wind d) cloud 9) Why does steam changes into water droplets when it touches on the surface of the lid? a) Because the hot steam cools down on touching the cold lid b) Because the steam is a gas c) Because the steam is heated up again d) Because the lid is very hot 10) Which form of water is shown in the picture? a) Gaseous form b) solid form c) liquid form d) none of the above 11) Which of the following water body has salt water? a) River b) Pond c) Stream d) Sea 12) Name the device that we use to collect underground water a) water tap b) shower c) hand pump d) well 13) What happens when we keep a tray of water in a freezer for two hours? a) Water changes into water vapour b) Water changes into water droplets c) Water starts to boil d) Water becomes ice 14) Which of the following is a wrong statement? a) Water can change its form from one form to another. b) Ice is the solid form of water c) Ice changes into water on freezing d) When cooled, steam changes into water droplets. 15) Which of the following heats up the water in the water bodies? a) The Sun b) The Moon c) The Earth d) The Mars

Water & Its Forms

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