Scientific subjects encompass various fields of study that seek to understand the natural world through observation, experimentation, and analysis. Key areas include biology, which explores living organisms; chemistry, the study of substances and their interactions; and physics, which examines the fundamental principles governing matter and energy. Each subject employs the scientific method to formulate hypotheses, conduct experiments, and draw conclusions. These subjects are interconnected, often overlapping in research and applications. For instance, biochemistry combines biology and chemistry to study the chemical processes within living organisms. Understanding these scientific subjects is essential for advancements in technology, medicine, and environmental conservation.