Name one thing that causes currents deep underwater?
Changes in the temperatures and salinity of the water
Oops!
Check
Okay!
Check
10
True or False: Salinity is the amount of pepper in water.
False
Oops!
Check
Okay!
Check
10
True or False: An eddy is a circular current of water that runs in the opposite direction of the larger current.
True
Oops!
Check
Okay!
Check
15
Name one way trash gets into the ocean
1. Dumped overboard from passing ships 2. Sewage and other hazardous waste is dropped from cruise ships 3. Trash is carried down rivers into the ocean
Oops!
Check
Okay!
Check
10
True or False: When two currents come together in a narrow area, such as between two islands, the currents can speed up. This spinning pool of water is a whirlpool.
True
Oops!
Check
Okay!
Check
20
What causes tides?
Tides are caused by the gravitational pull of the sun and moon on Earth's seawater.
Oops!
Check
Okay!
Check
15
Like whirlpools, the water in eddies moves with great __________________.
Velocity
Oops!
Check
Okay!
Check
boom
Lose 50 points!
Oops!
rocket
Go to first place!
Okay!
gift
Win 25 points!
Okay!
banana
Go to last place!
Oops!
25
How are surface currents formed?
When wind blows over the surface of the ocean, it pushes against the water and creates currents.
Oops!
Check
Okay!
Check
15
A giant rotating pattern of currents in the ocean is a called _________.
Gyres
Oops!
Check
Okay!
Check
20
Name a gyre teeming with animal life.
Sargasso Sea in the North Atlantic Gyre
Oops!
Check
Okay!
Check
25
What is upwelling?
Currents flow upward to the surface and bring important nutrients needed to sustain life.
