Science is often portrayed as a cold, dispassionate enterprise. The notion that science is an emotionless pursuit is mistaken. In Chapter 7, “How Do Emotions and Attitudes Influence Science Understanding?,” the authors explain how conducting and learning about science involve the full range of human emotions, including joy, amazement, surprise, and confusion as well as anxiety, anger, fear, and hopelessness. These emotions are present in the lab, in the science classroom, and in individuals reading about topics like genetically modified organisms and climate change. Research clearly shows that emotions and attitudes are deeply intertwined in thinking and reasoning about science, as they are with all human experiences. If one is in favor of innovative treatments for disease, one is likely to experience curiosity and hope when reading about a new therapy. If one is skeptical about vaccines, one may experience anxiety and fear when reading about fast tracking the development of vaccinations. The authors provide suggestions for individuals, educators, and communicators for heightening appreciation for the role of emotions and attitudes in science understanding and in science doubt, resistance, and denial.