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Oceanography Test 1
Oceanography Test 1 study guide
| Question | Answer |
|---|---|
| Oceans influence what | weather and climate |
| Important marine resources | food, oxygen, and natural resources |
| Have humans seen much of the ocean? | no, very little |
| Human effects on the oceans include | depleted fisheries, loss of marine environment, and pollution |
| recording and describing ocean processes and contents | Oceanography |
| biological and physical oceanography | 2 of the 4 main branches of oceanography |
| Uses processes of science to find answers | Scientist |
| Has made true exploration of the oceans possible | technology |
| A body of knowledge an an organized method | Science |
| Has improved and threatened human and other organism's lives | Science and Technology |
| The most logical action society can take about the effects of science and technology | Prioritize the consequences to the environment in applying technologies |
| Scientific process skills include | ID problem and predict outcomes, construct models, compare observations |
| A hypothesis is... | Educated, scientific guess that you can test |
| A Theory is? | a scientific explanation with supporting evidence |
| Polar molecule | has a positive and negative charged end |
| What is a Solution? | 2 or more substances with evenly dispersed molecules |
| Salinity | inorganic dissolved solids in seawater |
| Seawater's colligative properties | characteristics caused by the dissolved solids in seawater |
| Principle of constant proportions | Regardless of the salinity of seawater, the proportion of inorganic dissolved solids remains the same relative to each other. |
| Besides hydrogen and oxygen, this is the most abundant chemical in seawater. | Cloride |
| Are the oceans becoming more or less salty? | Neither |
| What causes pH to change with depth? | Carbon dioxide |
| A biogeochemical cycle | elements and compounds moving continuously to and from organisms and the Earth |
| Fundamental to all life form | Carbon |
| Organisms use nitrogen for? | the formation of organic compounds |
| An important component to DNA and nucleic acids | Phosphorus |
| Used for shells and skeletons in marine organisms. | Silicon |
| Used to construct specialized proteins | Iron and trace metals |
| Movement of materials by diffusion | Passive transport |
| Movement of materials from low to high concentration | Active transport |
| These can control the water concentration in their cells | Osmoconformers |
| These can change with the salinity of surrounding water | Osmoregulators |
| Cold water_____when added to hot water. | Sinks |
| Cold water is more____than warm water. | Dense |
| How does science progress? | through revisions of theories based on new evidence |
| What percentage of the Earth is covered with water? | 71% |
| The world's oceans provide what percent of the biosphere (where organisms live)? | 99% |
| Bonding of + and - electrons in Polar molecules | Hydrogen bond |
Created by:
FordLCHS
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