Chemistry is the branch of science that studies the composition, structure, properties, and changes of matter. It focuses on how substances interact with each other, forming new substances through chemical reactions. Chemists explore everything from the elements in the periodic table to complex compounds, helping us understand the materials that make up our world. Physics, on the other hand, is the study of matter, energy, and the fundamental forces of nature. It examines how objects move, the behavior of waves, and the principles of electricity and magnetism. Physicists seek to understand the laws governing the universe, from the smallest particles to the largest galaxies.