One property that could allow a student to easily separate sand and iron fillings is the difference in their magnetic properties. Iron fillings are magnetic, meaning they can be attracted to a magnet, while sand is not magnetic. This property could be exploited by using a magnet to attract and pull away the iron fillings, leaving the sand behind.
The property that would allow a student to easily separate sand and iron filings is magnetic attraction. Since iron filings are magnetic, a magnet can be used to separate them from the sand. By passing a magnet over the mixture, the iron filings will be attracted to the magnet and can be easily separated from the sand.
