How would you separate a mixture of sand and salt? Describe the steps involved.

To separate a mixture of sand and salt, the following steps can be used: 

1. Dissolution: Add water to the mixture of sand and salt. Salt is soluble in water, while sand is not. Stir the mixture to dissolve the salt. 
2. Filtration: Pour the mixture through a filter paper in a funnel. The sand, being insoluble, will remain on the filter paper as residue, while the salt solution (filtrate) will pass through. 
3. Evaporation: Heat the salt solution (filtrate) gently in an evaporating dish. The water will evaporate, leaving behind the solid common salt.