What could be more fun than learning about habitats, the body, the states of matter, and more with a cute, blue monster named Mo? In each book, readers meet Mo, ready to go on an adventure and discover more about the title topic. Each chapter explores a different aspect of the topic, from savannas to gravity. Colorful illustrations of Mo and friends add fun and whimsy to curricular science content such as food chains, energy, and plant parts.