Which method would be most effective for separating a mixture of sand and water?

If you have a mixture of iron filings and sulfur powder, which property of iron allows you to separate it from the sulfur?

Which method is best for recovering salt from a salt-water solution so that you keep the salt but let the water turn into vapor?

Which method would be most appropriate for separating a mixture of small pebbles and fine dry sand?

Which method would be most useful to separate a mixture of two liquids that have different boiling points, such as alcohol and water?

Which method would be most effective for separating a mixture of sand and water?

Which separation method is best for separating colorful pigments from a sample of black ink?

Which method is the most appropriate for separating a mixture of oil and water?

If you are trying to separate a mixture of salt and sand, which sequence of methods would be most effective?