Question

1. In a Grade 6 Science class a group of pupils would like to separate salt from water. What method will they use to separate the mixture? Explain your answer.

Answer 1

Answer:Evaporation

Explanation: Boiling water turns it into vapor—leaving the salt behind—that is collected and condensed back into water by cooling it down

Answer 2

The method they will use to separate the mixture is: Evaporation.

• The water in which dissolved salt is dissolved should be taken in a container and heat should be supplied to it.
• As the water reaches its boiling point, it will evaporate forming vapours. This process is called evaporation. As water will evaporate, only salt will be left in the container.
• Thus, salt can be separated from water by the method of evaporation.