^{rohan has kept four things-water, sand, salt and iron filings for doing experiment His naughty sister mixed all the things Help him to separate the things.}

First a magnet should be left near the container. This will attract the iron fillings and thus will be separted.Then pass the mixture through a filter paper. The sand will remain in the filter paper and the water and salt will pass through the filter paper. After this is done, heat the solution. The sand will be left in the container and the water will be turned into water vapour. This is how he can separate the substances.

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