- Iron is always magnetic
- Iron filings are made of small pieces of iron
- Hence, iron fillings are always magnetic

- Iron fillings are always magnetic
- Sand is always nonmagnetic
- So, a mixture of iron fillings and sand is a mixture of magnetic and nonmagnetic material

- A mixture of iron fillings and sand is a mixture of magnetic and nonmagnetic material
- Magnet can be used for separating a magnetic material from a mixture of a magnetic and nonmagnetic material
- Hence, a magnet can be used to separate iron fillings from sand

Hence, a magnet can be used to separate iron fillings from sand
Question: During science class, students combined 1 kg of iron filings with 1 kg of sand to create a mixture. Which of the following methods would be best for separating the iron filings from the sand?
Context: - Magnet can be used for separating a magnetic material from a mixture of a magnetic and nonmagnetic material 
- Sand is always nonmagnetic 
- Iron is always magnetic 
- Iron filings are made of small pieces of iron