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Ocean Study Guide
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- 1What factors make it difficult to explore the ocean floorDeep, Dark, Cold, Pressure
- 2Describe the process of sea-floor spreading2 Ocean plates pulling apart making new sea floor
- 3Why doesn't earth get larger when new rock is added to the ocean floor at mid ocean ridge.At the trench we lose sea floor where ocean plate is forced under another plate.
- 4Define mid ocean ridgeseries of mountain ranges on the ocean floor
- 5Define TrenchNarrow, elongated, V-shaped, deepest part of the ocean floor
- 6Define continental slopeSteep slope after the self
- 7Define SeamountUndersea volcanic, does not break surface, comes to a peak
- 8Define shore linewhere land meets ocean
- 9Define Continental shelfFlat part of the continent located underwater
- 10Define GuyotSeamount that have built above sea level and over time waves destructed the top.
- 11Define Abyssal plainVast, flat, sediment covered areas of the ocean floor
- 12Define Continental riseAngled slope base that separates the slope from the ocean floor
- 13Define volcanic islandSeamount the DOES break surface.
- 14The largest oceanThe pacific ocean
- 15The smallest oceanThe Arctic ocean
- 16Salinity is a measure of the amount of dissolved __________ in a liquidSalts
- 17Why are the oceans saltyMinerals carried in by rivers
- 18The earth is covered by _____% ocean water71%
- 19To study the ocean floor, scientist use _________, _________ and ___________Sonar, Satellite observations, Robotic vessels
- 20A ship sends out a sonar pulse to the ocean floor. If it takes a long time to return to the ship, the depth is _____ but if it takes a short time, the depth is _______Deep, Shallow
- 21A surfer is experiencing a wave under his surf board every 2 seconds. He estimates the wavelength to be about 8 meters. What is the wave speed?4 m/s
- 22Waves break because of what?Friction
- 23The 3 factors that affect wave height are: _______ of the wind, length of ______ the wind blows, and ______ the wind blows over the water.Speed, Time, Distance
- 24How many high tides day for most areas?2
- 25How many low tides per day for the most areas?2
- 26The force that caused tides to occur on earth is what?Gravity
- 27What moons phases are associated with a spring tide?Full moon, New moon
- 28Why are tidal ranges larger during spring tides?The moon, sun and earth are all lined up making the pull stronger.
- 29What moons phases are associated with neap tides?1st quarter and 3rd quarter
- 30Why are tidal ranges smaller during neap tides?The moon, sun and earth form right angles causing a pull in a different directions.
- 31Whats the tidal range, if high tide was 2.8m and low tide was 0.2m?2.6m
- 32What are swimming forms of fish and other animals?Nekton
- 33What are drifting organisms?Plankton
- 34What is the movement of water in the upper few hundred meters of the ocean.Surface current
- 35Whats a upward movement of cold water in an ocean?Upwelling
- 36What is a movement of water from an area of dense water to an area of less dense water.Deep current
- 37These currents are mostly caused by global winds.Surface currents
- 38These currents affect climate on land.surface current
- 39These currents directions are controlled by the Coriolis Effectsurface currents
- 40These currents are affected by differences in salinitydeep currents
- 41These currents transport planktonSurface currents
- 42These currents are affected by differences in water temperature.deep currents
- 43These currents are affected by continental deflectionssurface currents
- 44Warm currents originate from the _________Equator
- 45Cold currents originate from the_____poles
- 46Currents that keep coastal regions cooler year round are _____ surface currentscooler/ cold
- 47Currents that keep coastal region warmer year round are ______ surface currents.warmer/ warm
- 48The largest garbage patch is found in the ________oceanpacific
- 49plastic is dangerous to marine animals because they mistake it for______ and can get _______in it.food, caught
- 50Deep currents carry ____ dense water from the poles moving along the ocean floor toward the equator where it becomes ______ less dense water and rises.cold, warm
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- Fichas sobre Ocean Study Guide, creado por Abbey Marlin el 14/10/2020.
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- Abbey Marlin
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