How do plants make their own food? How do we hear sounds? How does the internet work? How do airplanes stay in the air?How do we see colors? How does the water cycle work? How does the sun produce energy? How does electricity get to our homes? How do vaccines work? How do glaciers form?Have you ever wondered how things work in the world around you? From how the human body functions to how technology and nature operate, This book has all the answers to your burning questions! This informative and engaging book explores a wide range of topics in science, offering clear and concise explanations to some of the most pressing 'how' questions in the field.Grade Level: Grade 1 - Grade 6