Sun & Moon Take Turns

"When the daytime and nighttime animals on Earth get tired of Sun and Moon's constant bickering over who should rule the world, they hold competitions--a cookout and a race--to determine the winner once and for all. But when neither the 'night' team nor the 'day' team wins in a fair way, how will they fix their problem? Includes a guide that helps parents and teachers explain the science of Earth's day-and-night cycles"--