You can line them up by the sink tell them to wash their hands and sing them the handwashing song song.
Possibly the "CDC" <span>Centers for Disease Control and Prevention. Hope this helps. </span>
I believe your answer is 30
Hypothermia occurs when a low internal body temperature interferes with the body's ability to regulate vital processes, such as metabolism and the heartbeat. One risk for hypothermia is getting wet, which vastly increases heat loss in the cold.