ONE PLANET This six book series delves into all aspects of Planet Earth. Explore the relationship between living things and the environment, climate change, sustainability and how the Earth was made. Each book is packed with spectacular photographs, easy to understand diagrams and awesome experiments you can try yourself. CORE & CRUST The Earth beneath our feet feels solid and unmoving, but Earth's surface is constantly changing, and deep beneath the crust is liquid rock. From earth's red-hot core to the highest mountain, this book explores the makeup of the planet we call home. Find out... * How the rock cycle works. * What causes earthquakes and volcanoes. * How our world was formed from dust and gas. ... and much more!