This document contains 12 multiple choice questions about materials and their properties. It asks about which materials are natural vs man-made, which are transparent, waterproof, or solid. It also asks about how some materials change state when heated or mixed with water, such as jelly melting when boiled water is added or chocolate melting when heated. The questions cover topics like the composition of glass, plastic, and cardboard and properties like transparency, waterproofness, and changes of state.