How would you separate a mixture of sand, sugar, and iron filings?

A mixture of sand, sugar, and iron filings can be separated by using multiple methods based on their different properties like magnetism and solubility.

First, a magnet is used to remove the iron filings from the mixture, since iron is attracted to magnets. This step separates one component easily.

Next, water is added to the remaining mixture of sand and sugar. Sugar dissolves in water, while sand does not.

Then, the mixture is filtered to separate the sand from the sugar solution. Finally, the solution is heated to evaporate the water, leaving behind sugar.

In simple terms, a magnet removes iron, water dissolves sugar, filtration removes sand, and evaporation gives back sugar.