Cosmic by Frank Cottrell Boyce
How would one prepare to take a trip to outer space? Are there practice trips? What is it like to be weightless? Liam is a tall boy who looks older than he really is and uses that to his advantage. When he and his "daughter" win a trip on a spaceship, getting there isn't as easy as he thinks. This book cracked me up many times but one of my favorite times is when the principal thinks he is the new social studies teacher and he addresses the school at an assembly!!