1) When we mix water and salt, the salt dissolves. a) True b) False 2) What is insoluble in water? a) salt b) oil c) juice 3) If we mix oil with water the oil will dissolve. a) True b) False 4) How can we separate water and salt? a) use a sieve b) Pass from one cup to another c) With evaporation. 5) When we melt butter it is irreversible. a) True b) False 6) When you cook a egg it is reversible. a) True b) False 7) When we make pop corn it is irreversible. a) True b) False 8) What is the name of the process of changing from solid to liquid?  a) melting b) solidification c) evaporation d) condensation 9) When you freeze the things what is the name of the process? a) melting b) solidification c) evaporation d) condensation

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