Early learners are encouraged to ask and answer questions about machines (eg: Why do some planes leave a long, white trail behind them? Why do washing machines spin? Why do cranes have such a tall tower? Why do trains have conductors?) in this playful text. Each question is posed and answered first with an imaginative silly answer followed by the correct answer. The text sequence and repetition creates an engaging game for young readers, as they are encouraged to dream up their own silly answer on the way to learning.