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Oceans
| Question | Answer |
|---|---|
| Which ocean is found at the NORTH pole? | Arctic Ocean |
| Which ocean is off the coast of Georgia, Florida, and South Carolina? (hint: includes the Gulf Stream Current) | Atlantic Ocean |
| Which ocean is the largest? | Pacific |
| Which ocean is the deepest? | Pacific |
| Which ocean feature flat and is found 2-3 miles underwater? | abyssal plain |
| Which ocean feature is an underwater volcanic mountain? | seamount |
| Which ocean floor feature is made when plates DIVERGE (spread apart)? | mid-ocean ridge (or rift valley) |
| Which ocean floor feature is made when plates converge (or collide), then one plates subducts under another plate? | trench |
| What causes surface currents and surface waves? | wind |
| What causes deep currents? | density (from temperature and/or salinity changes) |
| Cold and salty water is denser, so it will _______ in warm or fresh water. | sink |
| What 3 things affect an area's climate? (1) elevation (2) latitude (3) ________ | surface currents |
| Which surface ocean current is found off the coast of Georgia AND is warm? | The Gulf Stream Current |
| Which surface ocean current is found off the western coast of the United States and is cold (because the water flows from Alaska)? | The California Current |
| The top of a water is wave is the | crest |
| The bottom of a water wave is the | trough |
| As you go deeper into the ocean, water temperature _________ | decreases (gets colder) |
| As you go deeper into the ocean, water pressure _____________ | increases |
| What instrument uses SOUND to find out how deep the ocean is at one place? | sonar |
| The horizontal distance from crest to crest | wavelength |
| The vertical distance from the bottom to the top of the wave | wave height |
| _________________ are waves that are mainly caused by strong underwater earthquakes (sometimes underwater landslides or volcanoes or by meteors/comets that hit the ocean) | tsunamis |
| Which of the following is an ocean? a. Antarctica b. Arctic | Arctic (there's water under the ice); not Antarctica because there's rock under the ice |
| What are the 2 types of ocean CURRENTS? | surface and deep |
| ___________ are caused by the gravitational pull by the moon. | tides |
| What are the 2 types of extreme tides (each happens twice a MONTH)? | spring and neap |
| The ____________ effect makes water currents look like they bend because the earth is spinning (so currents go clockwise in the northern hemisphere). | Coriolis |
| (true or false) You'll find colder and saltier water at the bottom of the ocean. | true (because cold water sinks and saltier water sinks) |
| What is the average salinity (in %) of the oceans? | 3.5 % (three and a half) |
| Fish and seaweed are _________ natural resources. | renewable |
| The moon is so small (with little mass), so why does it affect the tides more that the sun (which is huge and very massive)? | The moon is a lot closer. |
| The ____________ is the flat part of the ocean next to the beach. | continental shelf |
| When a seamount builds up high enough to go above the water (above sea level), it is called a volcanic __________. | island |
| _____________is a measure of how salty the water is. | salinity |
| What 2 things can make ocean water denser? | saltier (higher salinity) and colder |
| How many high tides do we have every day? | TWO |
Created by:
mcmullan
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