Show:
Waves
High/Low Tides
Spring/Neap Tides
Ocean Characteristics
Vocab
100
What do we call the highest point of a wave?
Crest
100
How many high tides are there every day?
2
100
What are spring tides known as?
Strong Tides
100
As depth increases, temperature......
Decreases
100
Salinity
The amount of salt in seawater
200
What do we call the lowest point of a wave?
Trough
200
Approximately how long does it take to go from low tide to high tide & vice verse?
6 hours, 12 minutes
200
What are neap tides known as?
Weak Tides
200
What is the atmospheric pressure at sea level?
14.7 PSI
200
Basin
A low lying area where there is an ocean
300
What do we call the point from either one crest of a wave to another OR one trough of a wave to another?
Wavelength
300
What causes tides? (In general)
Gravity (or the alignment of the sun, moon, and earth)
300
During which moon phases do spring tides occur? During which moon phases do neap tides occur?
Spring tide: Full & New Neap: 1st & 3rd quarter
300
The two primary salt ions are:
Chloride & Sodium
300
Upwelling
a circulation in the ocean that brings deep cold water to the surface
400
What is a breaker?
How a wave collapses
400
What is a high tide?
When water reaches it's highest point.
400
what is a neap tide?
High tides are lower and low tides are higher than normal
400
Currents spin _____________ in the northern hemisphere
Clockwise
400
Surface Current
move water horizontally-parallel to earth's surface (powered by wind)
500
What is a wave?
Movement of energy through matter or space
500
When water reaches it's lowest point is known as....
Low tide
500
What is a spring tide?
high tides are higher and low tides are lower than normal
500
What are the 3 oceanic layers?
Surface Mixed Zone, Deep Zone, & Transition Zone
500
Density Current
formed when more dense seawater sinks under less dense seawater