How do you pee in space?

In order to win an interview with an astronaut and a trip to space camp, George competes in a physical fitness contest, but in his determination to win, he misses how much this prize means to his friend, Alex.

In order to win an interview with an astronaut and a trip to space camp, George competes in a physical fitness contest, but in his determination to win, he misses how much this prize means to his friend, Alex. Book #13