In an mixture, two or more substances that keep their own properties are combined. You can use a(n) magnet to separate an iron particle and sulfur mixture. In perfumes, substances are blended together to create pleasing fragrances. However, some of the perfume substances by themselves might have foul odors. Perfume chemists can recognize individual scents. A mixture made of parts that separate upon standing is called a(n) suspension. In this mixture, solid particles separate by settling to the bottom, while fine particles float. Particles can be separated using a(n) filter or strainer. An example of a(n) emulsion is water and oil. These two liquids do not mix together.