Question

how to separate a mixture of water, sand, salt and iron fillings

Answer 1

use magnet to remove iron fillings first. then dump the remaining mixture into a cup. fill the cup with water and stir until salt dissolves. then filter off the sand. then finally boil the salt and water mixture till the water evaporates, leaving behind the salt crystals

Answer 2

Answer:

To separate iron fillings we can use magnetic separation. Then add water to the remaining mixture. Then using filtration sand can be separated. Salt can be separated from water by evaporation.