The initial contact of students with Chemistry takes place during the curricular stage of Secondary Education and High School, and it represents a real challenge for teachers to teach and illustrate the theoretical concepts related to this discipline. Keeping this challenge in mind, we have set out to create this manual to provide teachers with a practical tool for teaching Chemistry in the classroom through attractive, simple, and low-cost experiments that, in addition to facilitating the understanding of theoretical concepts, spark students' interest in Chemistry, a discipline without which it is impossible to understand the world we live in.