General Information
Earth vs. Hydrosphere - Who is older?
Earth - it took a few billion years for water to accumulate, forming the hydrosphere
Which property is described as the amount of dissolved salts, or the salt content found in the water?
Salinity
The ______ ______ is the most well-known surface current and carries warm water from the equator north and east in the Atlantic Ocean.
Gulf Stream
What are daily changes in the level of ocean water caused by the pull of the moon's gravity on Earth?
Tides
Oceans are most polluted along the __________.
Coasts
Why did we name our ocean water?
To make it easier to identify the location(s).
Temperature varies from top to bottom - the temperature __________ as depth __________.
Decreases, Increases
Which type of current brings warm water to cooler parts of the ocean and moves fairly quickly?
Surface Currents
Ocean waves transfer __________ from wind to the water.
Energy
Name one negative effect of oil spills.
Cover the water, coat the animals, destroy coasts
What are the 5 names we have given to our ocean water?
Pacific, Atlantic, Indian, Arctic, Southern
The deeper you go and the more water that is above you, the greater the __________.
Pressure
Which type of current is driven by differences in the water's density and primarily brings cold water to warm water areas?
Deep Sea Currents
The highest part of a wave is called the __________.
Crest
The overflow of fluid from a farm or industrial factory is called __________.
Runoff
Our Earth is ___% salt water and ___% fresh water.
97% salt water & 3% fresh water
Water density increases as salinity __________, temperature __________, and pressure __________.
Increases, Decreases, Increases
This type of coastal current moves along the shore and is formed when waves approach the shore at an off angle in the direction of local wind.
Longshore Currents
The lowest part of a wave is called the __________.
Trough
__________ __________ form as trash is caught in rotating currents.
Garbage Patches
The frozen part of the Earth's hydrosphere is called the ______________.
Cryosphere
The composition of ocean water consists of "pure" water, dissolved __________, other dissolved __________, and dissolved __________.
Salts, Minerals, Gases
Name the 3 things that create, or impact surface currents.
Global wind patterns, rotaton of the Earth, and shape of ocean basins
Waves are bigger if the wind blows:
__________ amounts of time
__________ in speed
Over a __________ distance
Longer, Faster, Greater
If something is __________, it means that it is able to decompose naturally. Most pollutants are not able to do so.
Biodegradable