The texts also present the properties of substances. The texts explain what substances and materials are like. You are used to describing things with adjectives. For example, dry wood is light and hard (adjectives). In chemistry texts, properties are described not only with adjectives but also with nouns (names of properties): the properties of dry wood are lightness and hardness (nouns). What properties can you find in the text? Different phenomena are also described using nouns: melting, evaporation.