Divisions of the Global Oceans
1.
Atlantic ______________ largest a) Average depth of 3.6 km
2.
Pacific __________ ocean and feature on Earth’s surface a) Contains more than ½ of ocean water on Earth b) ______________ ocean at 3.9 km
3.
Indian is the ______ largest a) Average depth of 3.8 km
4.
Southern Ocean a) ________________ ocean
5.
Arctic Ocean

Sea: ____________ parts of ocean partially __________________ by __________
Properties of Ocean Water
1.
Composition a.
__________: carried out by rivers, not returned to land when water evaporates b.
Elements: __________, ____________, magnesium, sulfur, calcium, & potassium c.
Dissolved ____________: Nitrogen, _____________, & carbon dioxide
2.
Salinity: amount of dissolved salts in ocean water a.
Increases as _______________ increases b.
____________ (evaporation) of water will increase salinity c.
_________ of water (rain, rivers) will __________ salinity
3.
Temperature a.
Surface: temperature effected by ____, moving water underneath, & distance from the _________ i.
Temperature _______________ as depth increases b.
Thermocline: zone of rapid temperature _________
__________ surface water
4.
Density: effected by _____________ & __________
5.
As Depth Increases so does the __________________
6.
Color: determined by the way water ___________ or ________________ sunlight
Ocean Movement
 Waves: The movement that carries _____________ through ocean.
Caused by:
• _____________ • ______________ • ______________ • ______________

Parts of a wave
• ___________ – highest point of a wave
• Trough – ____________ point of a wave
• Wave Height – _______________ distance between the crest and the trough
• Wavelength – ________________ distance between two crests or two troughs
Label the Wave below:
Wave Movement
• When a wave passes through the ocean, individual water molecules move ____ and ________ but they do _______ move forward or backward.
Tides
• Caused by the ______ and ______ of sea level
• 4 tides occur daily: __ high tides & __ low tides
• Tidal Range: _____________ between
__________ and _____ tide
• Intertidal Zone: area that high tide
________ and low tide __________
• Period when sea level rises: ________ tide
• Period when sea level_________: ebb tide
• Period in between: _________ ___________
*Sun’s Tidal influence is only ____% that of the Moon
Due to the much ____________ _____________ the
__________________ force is reduced
Ocean Currents
• Surface Currents: Currents mainly in the top _____ to _______ m of the ocean
• Driven by Earth’s __________ systems
• Northern Hemisphere ________ winds and _____________ blow the _______ Stream

• Deep currents: Caused by __________________ in ______________ caused by the
________________ and ____________ of ocean water
• Moves _____________ in deep ocean
• Cold, dense water sinks at the _____________
• After sinking these water masses ____________ move away from the poles
• Eventually return to the surface through __________________
Surface Currents
• Upwelling: upward motion of ________ water occurs when surface water is moved _______________
• Downwelling: _________ surface water piles up along the shore and _____________
Deep Water Currents
• ___________________ Circulation: ocean conveyer belt
• Dominant __________ ________ is difference in density caused by ______________ and ______________
• As water ______________ into ice, the _________ that does ____ ___________ becomes much more ___________ (salty). Water that has a _________ salt content is _________ dense and as a result will ____________.
• Cold water is _________ ______________ than warm water and will ________