1) What is the process that change solid to liquid a) melting b) freezing 2) What is the process that change liquid to solid a) melting b) freezing 3) What is the process that change liquid to gas a) evaporation b) melting c) boiling 4) What is the process that change gas to liquid a) evaporation b) melting c) condensation 5) Choose the correct equation for evaporation a) liquid + heat —> gas b) gas + heat —-> liquid 6) Choose the correct equation for condensation a) liquid + heat —> gas b) gas + heat —-> liquid 7) Choose the correct equation for boiling a) liquid + heat —> gas b) gas + heat —-> liquid 8) Choose the correct equation for freezing a) liquid + heat —> gas b) Liquid + heat —-> solid 9) Choose the correct equation for melting a) solid + heat —> liquid b) Liquid + heat —-> solid 10) Choose the correct statement for evaporation a) Reverse of evaporation b) water change into water vapour c) particles loss energy 11) Choose the correct statement of condensation a) Reverse of evaporation b) water change into water vapour c) particles loss energy 12) Water can change state. True or False. a) True b) False 13) Water change into gas when it gain heat. True or False. a) True b) False 14) Water change into solid when it gain heat. True or False. a) True b) False 15) Water can exist in all three state of matter. True or False. a) True b) False 16) When ice is heated, the particles gain energy and move quickly and pull further apart. True or False. a) True b) False 17) When water is boiled, the particles gain energy and move quickly and pull further apart. True or False. a) True b) False 18) 100 degree Celsius is the boiling point of water a) True b) False 19) The melting point of ice is 90 degree Celcius. True or false a) True b) False 20) When substance gain heat they expand. True or false a) True b) False 21) What is the state of matter of the image? a) Solid b) Liquid c) Gas 22) What is the state of matter of the image? a) Solid b) Liquid c) Gas 23) What is the state of matter of the image? a) Solid b) Liquid c) Gas 24) What is the state of matter of the image? a) Solid b) Liquid c) Gas 25) What is the state of matter of the image? a) Solid b) Liquid c) Gas 26) What is the state of matter of the image? a) Solid b) Liquid c) Gas 27) What is the state of matter of the image? a) Solid b) Liquid c) Gas 28) What is the state of matter of the image? a) Solid b) Liquid c) Gas 29) What is the state of matter of the image? a) Solid b) Liquid c) Gas 30) Water on Earth’s surface ………. and moves up into the air as ………. a) melting, water b) boiling, water c) evaporates, water vapour d) boiling, water vapour

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