1. Branches of Oceanography

2. Biological
Diversity of life in the ocean and the ocean’s role as a habitat

3. Geological Geology of the ocean
Composition of marine sediments and rocks
Undersea volcanoes and earthquakes
Seabed movement

4. Chemical The chemistry of seawater
Rates and effects of chemical reactions
Changes brought on by people (pollution, red tide?) and nature (bioluminescence)

5. Physical The study of physics within the ocean
Water movement (waves, tides and currents)
How sound and light travel through water
How the oceans influence weather and climate