Important Questions on Separation of Substances-Cleaning of Food
Name the method which you will use to separate the mixture of sugar and water. (Crystallisation/Evaporation) 
Name the method which you will use to separate the mixture: Mixture of salt and sand. 
Name the method which you will use to separate the mixture: A mixture of sand and water. (Handpicking and winnowing / Sedimentation and decantation) 
Name the method which you will use to separate the mixture of sand and stones. (Condensation / Sieving / Sedimentation / Hand picking) 
What is the difference between threshing and winnowing? 
What is the difference between sedimentation and decantation? 
What is the difference between evaporation and condensation? 
How will you obtain clear water from muddy water? Explain. 