Final answer:
To determine if polystyrene foam is polar or non-polar, conduct an experiment using water and Vrsol as immiscible liquids. Observe if the foam dissolves or mixes with either liquid.
Step-by-step explanation:
An experiment to determine whether polystyrene foam is polar or non-polar can be conducted by observing its behavior when placed in water and Vrsol (a paint thinner), which are immiscible liquids.
If polystyrene foam is non-polar, it will not dissolve or mix with water or Vrsol. Instead, it will float or remain separate from the liquids.
However, if polystyrene foam is polar, it will dissolve or mix with either water or Vrsol, depending on which liquid it is placed in.