The study of the physical and chemical properties of the Earth's oceans is called oceanography. This interdisciplinary field encompasses various aspects, including marine biology, marine chemistry, geophysics, and marine geology. Oceanographers investigate ocean currents, water composition, biological communities, and the interaction between oceans and the atmosphere. Their research is critical for understanding climate change, marine ecosystems, and the overall health of the planet's oceans. Science in this area also contributes to the management and conservation of marine resources.