Mr. Wizard explains and demonstrates convection currents.

Byron kisses his reflection in a frozen car window and gets his lips stuck to it. He pleads to Kenny for help, and Kenny thinks he's attempting to trick him again. Kenny learns that Byron is serious and gets his parents to help.

The class goes to Water Land and learns about how water changes when it is exposed to different amounts of heat. When water is heated by the sun, it evaporates. When it is cooled, it condenses.

When Mark loses power on Mars, he scavenges the Rover 1 to double his battery life. It is freezing cold, and he is faced with a dilemma: use the heater to stay warm and burn through half his battery every day, or slowly die from the cold to save battery life.

Flick's classmates triple dog dare him to stick his tongue on a frozen metal pole. When he does, the other students soon realize that his tongue is actually stuck, and they panic and leave him alone because the bell rang and they don't know how to help him. Eventually the teacher gets the Fire Department to help Flick.