| Question | Answer |
|---|---|
| Salinity | A measure of the amount of dissolved salt in a given amount of liquid. |
| Thermocline | A layer in a body of water in which water temperature drops with increased depth faster than it does other layers. |
| Pack Ice | A floating later of sea ice that completely covers an area of the ocean surface. |
| Density | The ratio of the mass of a substance to the volume of the substance |
| What are the three main dissolved gases found in ocean water? | N2, O2, CO2 |
| What are the four ways that gases can enter ocean water? | 1. Streams and Rivers 2, Underwater volcanoes 3. From the atmosphere given off by marine organisms |
| What is the relationship between water temperature and the amount of dissolved gases it contains? | Colder water contains more dissolved gases |
| What is the relationship between the temperature and density of ocean water? | Colder water is more dense |
| What are the two factors that change the salinity of ocean water? | Precipitation and evaporation. |
