Final answer:
Styrofoam is the material that has been called "solidified gasoline".
Step-by-step explanation:
The material that has been called "solidified gasoline" is Styrofoam.
Styrofoam is a brand name for a type of expanded polystyrene (EPS) foam, which is a solid material made from polystyrene. It is lightweight, rigid, and has good insulation properties. Styrofoam gets its nickname "solidified gasoline" because it is derived from petroleum, which is a fossil fuel.