1. *Physics*: The study of matter, energy, and the fundamental forces of nature.br 2. *Chemistry*: The study of substances, their properties, and how they interact.br 3. *Biology*: The study of living organisms and their interactions with the environment.br 4. *Earth Science*: The study of the Earth, including geology, meteorology, and oceanography.br 5. *Astronomy*: The study of celestial objects and the universe beyond Earth.