Scientific disciplines are branches of knowledge that focus on specific areas of study within the natural and social sciences. Examples include biology, which examines living organisms; chemistry, the study of substances and their interactions; and physics, which explores the fundamental principles of matter and energy. Each discipline employs unique methods and approaches to investigate questions and solve problems. These disciplines can be further divided into sub-disciplines. For instance, biochemistry combines biology and chemistry to study the chemical processes within living organisms. Similarly, psychology is a social science that investigates human behavior and mental processes. Together, these disciplines contribute to our understanding of the world.