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Science Test game
25 cards·by 11 12
What does the size of a wave depend on?
how far, how fast, and how long the wind blows
What does SONAR stand for?
sound navigation and ranging
What does GEOSAT stand for?
changes in the height of the ocean surface
How fast does sound travel in water?
1500 milliseconds per hour
How do scientist figure out ocean depth?
they bounce back the sonar
What are the three subdivisions of the continental basin?
the continental shelf, the continental slope, and the continental rise
What does the deep ocean basin consist of?
Abyssal plain, mid ocean ridge, rift valleys, and ocean trenches
What forms features on the ocean floor?
tectonic plates
What is the flattest part of the ocean floor called?
the abyssal plain
What are mountains on the ocean floor called?
seamounts
What causes ocean trenches to form?
subduction
What is one way we use seaweed?
as a thickener for food products
True or False: Trash in oceans is not harmful to plants, animals, or people
False
Non point-source pollotion...
comes from many sources
What is sludge?
The solid part of waste
What are two effects of oil spills?
animal death and loss of money and business
What are stream like movements of ocean water called?
ocean currents
What are three factors that influence ocean currents?
wind, earths rotion, and position of the continents
What three factors control surface currents?
global winds, the corrills effect, and the positions of the continents
What happens to surface currents when they meet a continent?
they are deflected and change direction
In what ocean do El Nino and La Nina form?
the western pacific
What is an El Nino?
a change in water temp in the pacific it produces a warm current
What is a La Nina?
a change in the eastern pacific ocean in which surface water temperature becomes unusually
cold
cold nutrient rich water from the deep ocean rises to the surface to replace warm surface water
in a process called...
upwellling
What is one reason upwelling is important to ocean life.
it makes plankton more plentiful therefore the whole food chain benifits