Why does Attitcus awaken Jem an Scout instead of just letting them sleep through the fire incident? Give a line of text to support your answer.

Atticus is worried the fire will spread to their home.

“I expect so,” said Atticus. “Now listen, both of you. Go down and stand in front of the Radley Place. Keep out of the way, do you hear? See which way the wind’s blowing?”