BIOL 1080- Midterm Exam Guide - Comprehensive Notes for the exam ( 18 pages long!)
Document Summary
Chapter 3 chemical and physical features of seawater and the world ocean. Earth: this is the reason we have liquid water, the three phases of matter are: liquid, gas, and solid. If ice did not float, a body of water would freeze from the bottom up and eventually the whole body of water would freeze. Since ice floats, the floating ice creates a barrier between the air temperature and the water below the ice. In addition to hydrogen bonds, water has other unique chemical properties. Water is known as the universal solvent: any substance dissolved in water is known as a solute, ocean water has solutes dissolved in the water. This level of solutes is called salinity: the main solutes dissolved in ocean water are sodium and chloride (which gives it a salty taste) Salinity is measured in parts per thousand (ppt, or 0/00).