1. In the first part of the experiment iron and copper were combined to make a mixture.

2. It was a mixture because the iron and sulfur kept their own properties.

3. The magnet was used to pull the sulfur from the mixture.

4. In the second part of the experiment, heat was added.

5. Iron Sulfide was created, and Iron Sulfide is also a mixture.

6. The magnet was used a second time and the iron was pulled out of the iron sulfide.

7. Iron sulfide is a pure substance.