oceanography

Seawater is typically denser than freshwater due to seawaters-

• greater depth
• smaller mass
• higher salinity
• lower freezing point

What part of the ocean floor would be the most difficult to explore due to pressure?

• continental slope
• sea mount
• trench
• abyssal plain

Salinity means

• how many fish are in the water
• how much salt is in the water

The ocean floor 

• is always a flat bed of sand 
• has mountains, plains, and ridges like land surfaces
• is covered by the same amount of water everywhere
• covers less area than land

As you go deeper in the ocean, the _______ decreases. 

• water
• salinity
• temperature
• water pressure 

What do the arrows represent in the picture?

• waves
• currents
• tides

What causes the tides to change?

• rotation of the Earth
• magic
• gravitational pull from the moon
• ocean currents

The large flat region of the ocean floor is called the 

• ocean trench
• continental shelf
• abyssal plain
• seamount 

The Gulf Stream is 

• a stream behind the school 
• a current in the Atlantic Ocean that flows on the eastern coast of North America 
• a boat 
• part of the ocean floor 

Deep Ocean currents are a result of

• Global Wind Patterns
• Earth's Rotation
• Density
• All of the above