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Earth Science
Oceans and Energy
| Term | Definition |
|---|---|
| Salinity | Amount of dissolved solids in a liquid |
| Density | Ratio of mass of a substance to volume of substance |
| Thermocline | Layer in body of water that temperature drops more rapidly with the depth than the layers, often where life will be more abundant and where sunlight will stop hitting |
| Coriolis Effect | Curving of a path from a moving object from a normally straight path because of Earth's rotation |
| Gyre | Huge circle of moving ocean water above and below the equator |
| Gulf Stream | Atlantic current that is swift, deep and warm it flows along Eastern coast headed North in the US |
| Antarctic Circumpolar Current | Ocean current the flows clockwise from West to East around Antarctica, known as West Wind Drift. Most powerful current |
| Sargassum | A brown seaweed with berrylike air bladders, typically forming large floating masses. |
| How does most oxygen enter the ocean? | Diffusion from the atmosphere and photosynthesis by aquatic plants. The mixing of surface waters by wind and waves increases the rate at which oxygen from the air can be dissolved or absorbed into the water. |
| What is the relationship between ocean temperature and the amount of dissolved gases it can hold? | Salt makes ocean water more dense. The temperature and salinity in the water |
| What is the relationship between ocean temperature and density? | As temperature increases, the space between water molecules increasesâalso known as density, which therefore decreases. If the temperature of water decreases its density increases, but only to a point. |
| What two major factors affect the salinity of ocean water? | Evaporation of ocean water and formation of sea ice both increase the salinity of the ocean. The continuous input of fresh water from rivers, precipitation of rain and snow, and melting of ice. Helps balance it. |
| Non-renewable energy(define and give examples) | is a resource of economic value that cannot be readily replaced by natural means on a level equal to its consumption. Most fossil fuels, such as oil, natural gas and coal |
| Renewable energy(define and give examples) | Energy from a source that is not depleted when used, such as wind or solar power. |
| Which specific types of energy contribute to rising levels of carbon dioxide in the atmosphere, and which ones do not? | Petroleum, Coal, Natural Gas, Biomass Anything that doesn't burn, wind, geothermal |
| Compare how coal, petroleum and natural gas form | All three form from the remains of living things that undergo chemical changes when under intense pressure and heat inside Earth. Coal forms from plant remains. Oil and natural gas commonly form from the remains of marine organisms. |
| Which isotope is used in nuclear fission reactions? | Uranium 235 |
| Which types of renewable energy is used by many developing countries? | Biomass |
| Which types of renewable energy is used to heat 85% of homes in Iceland? | Geothermal Energy |
| Which types of renewable energy is needed for photo voltaic cells? | Solar Energy |
| What are large groupings of wind turbines called? | Wind Form |
| What are some advantages and disadvantages of each energy? | Nuclear Pro- Very Effcient Con-A Lot of waste |
Created by:
jadetaylor5
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