1) What happens when water cools down? a) It changes into WATER VAPOUR b) it changes into ICE 2) What happens when water is heated? a) it changes into WATER VAPOUR b) it changes into ICE 3) What happens when ice is heated? a) it changes into LIQUID b) it changes into WATER VAPOUR 4) What are the three states of water? a) liquid, gas and air. b) liquid, solid and vapour. c) liquid, solid and water. d) liquid, solid and gaseous.

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