For example, if they have the word “blue” on their list, ask them to use a more descriptive word, as in the video example. Encourage students to consult sources such as a dictionary and a color wheel ...
Until relatively recently in human history, "blue" didn't exist. As the delightful Radiolab episode "Colors" describes, ancient languages didn't have a word for blue - not Greek, not Chinese ...
color words are often strongly linked with emotions. Consider how English speakers frequently use colors to talk about negative affective states: feeling blue, in a black mood, seeing red.