Remove the magnet. Let the liquid on the magnet drain back into the bowl. Use a piece of white tissue paper to remove the particles attached to the magnet. Use a hand lens to observe the particles. Point out that all mixtures can be separated because they contain two or more substances that are physically, not chemically, combined.
Mixtures can be in any of the four phases.
When a mixture is separated, each substance in the mixture retains its own properties. As documented through state assessment, at Level 1, the student is able to determine whether a change is physical or chemical, given examples. Procure responses from the class. In lab groups, perform the following experiment. Give students a container with two substances.