Learn about the solar system by meeting some hilarious characters who are keen to explain why they are the most important! This book makes science learning fun and engaging for children aged 7 plus. Meet the Sun, everything in the solar system revolves around her, so surely she is most important? But what about Earth, the perfect place for people? Meanwhile Mars is sure red is best and Jupiter thinks being the biggest rules. So which really matters most? What Matters Most is a series of humorous books for children that explain science processes with lively comic artwork and show why variety is important. Titles in the series: Body Bits / Energy and Power / Gravity and other Forces / Materials / Plant Parts / The Sun, the Moon and the Planets.