Find out about the natural world with this first introduction to the seasons. Need to Know introduce key topics for children aged 6 plus, featuring fun facts, fantastic photographs and diagrams. The books also include quizzes and project ideas and are book banded. Contains What are the seasons? / North and south / Our tilted planet / Spring / Summer / Autumn / Winter / Day and night / Trees throughout the year / Hibernation / Migration / Other seasons / The poles / Quizzes / Projects.