Question

1. iron filings are attracted by a magnet. this is a physical property of iron but not of most other materials, including sand. how could you use this difference in physical properties to separate a mixture of iron filings and sand?

Explanation:

Step1: Identify the key property

Iron is magnetic while sand is not.

Step2: Determine the separation method

Move a magnet over the mixture. The iron filings will stick to the magnet, separating them from the sand.

Answer:

Move a magnet over the mixture. The iron filings will be attracted to the magnet and can be separated from the sand.