Every moment of your life will be from the perspective of a single planet—Planet Earth. You were born here and you will die here. This textbook is a guide to your home, to your place in the universe. By taking this course, you will learn about your home planet: how it works and how we know it works this way. This course is a user's manual for planet Earth, with direct recommendations for future generations, such as yourself, to maintain its health and natural wonders. As an astute student, you will be introduced to the theoretical principles of science and of how to defend yourself from the spread of ignorance. You will learn about Earth’s dimensions and motions, as well as how to navigate its surface. You will learn how energy originates from the closest star (the Sun), its Moon, and other sources of energy in the Earth’s active core and how this energy can be used and stored. You will learn basic scientific principles of matter, the makeup of substances that form the field of chemist
