What happens to the food we eat after we chew and swallow it? That's where the digestive system comes in! This volume takes readers through one of the most important systems in the human body, exploring the intricate processes of digestion from the moment food enters the mouth to the absorption of nutrients in the intestines. With achievable text and fascinating facts, readers deepen their understanding of how their bodies function. By broadening readers' STEM knowledge, this volume helps them cultivate a personal connection to their own biology, fostering curiosity about nutrition and health and allowing them to explore the wonders of the essential processes that sustain life.