Sea Ice
Can sea ice form anywhere?
Unlike glaciers, this particular type of ice does not form on land and rather strictly in the sea.
True or False: All Surface water follows gyres.
False: Some currents known as equatorial currents follow the equator.
How fast do tsunamis travel?
500 mph
True of false: Salinity from ocean-water has remained relatively the same throughout Earth’s history?
What is the largest animal ever? It’s a marine mammal…bonus points if you can tell us how much this mammals heart weighs.
Around 2,000 lbs…
True or false: sea ice can drift away from the polar regions and retain its ice construction?
False, can only survive in areas of similar climate
What is the result of sediment along a coastline caused by waves approaching at an angle, creating a zigzag transport of sand, pebbles, and other materials parallel to the shore?
Longshore drift.
How many feet was the biggest wave ever recorded? You can give your answer in ft or in relative comparison.
1,720 ft, about 250ft taller than the empire state building!!
Name the three most common solids found in sea water composition.
Chloride, sodium, sulfate
What marine mammal holds the record for fastest swimmer?
The sailfish!! Sailfish can reach up to 68-70mph underwater in short bursts.
What happens to the more salty water during the freezing?
Sinks down back towards the equator
List the 3 phenomena that global scale surface current paths result from
Waves are formed by the friction generated when wind blows across the surface of an ocean or lake. The symmetric shape of waves offshore shows how the kinetic energy of the wind is transferred to the water.
This type of weathering adds salinity into the seawater….
Chemical weathering
Which sea mammal has a large protruding tusk?
Narwhal
What percentage of the ocean is covered in sea ice?
12%
What is the difference between upwelling and downwelling zones?
What happens if a wave goes unobstructed?
The wave has the potential to travel across an entire ocean basin.
With the evaporation of seawater, this mineral is usually first to form:
CaCo3 (calcium carbonate)
Which sea animal has the largest brain mass?
Sperm whale- adult brain can weigh up to 20lbs
Name the trait that reflects much of the sunlight off of the ice, keeping it cool and from melting?
High Albedo
What causes thermohaline circulation?
The rising and sinking of water driven by contrasts in water density- influenced by temperature and sali
There are four main types of breaking waves: spilling waves, plunging waves, collapsing waves, and surging waves.
This process removes salinity from the ocean gradually:
Primary productivity
What is the largest brown algae in the Sea?
Giant kelp aka bladder kelp