Branches of science are categories that help organize the vast field of scientific knowledge. The main branches include natural sciences, which study the physical world, social sciences, which explore human behavior and societies, and formal sciences, which focus on abstract concepts like mathematics and logic. Each branch has its own subfields, such as biology under natural sciences and psychology under social sciences. These branches work together to enhance our understanding of the universe. For example, environmental science combines elements of both natural and social sciences to address issues like climate change. By studying these branches, scientists can develop solutions to complex problems affecting our world.