Question

How will you separate a mixture of water, sand, salt and iron fillings?

Answer 1

Wrap a magnet in plastic lunch wrap and move it through the mixture of the three solids. The iron filings will stick to the magnet. The filings can be removed by unwrapping the plastic from the magnet carefully!Mix the remaining salt and sand in water and stir. Make sure you have used enough water to dissolve all of the salt, but not too much that handling large quantities of salt water becomes a problem.Using a funnel, flask and filter paper, filter off the sand from the salt water solution. Wash the sand with some fresh water to remove the last of the salt from the sand in the filter paper.Put the sand to one side and allow it to dry in the Sun or warm oven.Collect all the salt water in a weighed container and evaporate off the water. This may take some time in the Sun or may be sped up in an oven.
Hope it helps u.

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.