1.5: Density and Pressure

Complete the equation: Density =

• Volume / Mass

• Mass / Volume

• Mass / Size

• Size / Mass

The highest density water

• stays at the surface

• sinks to the bottom

• remains in the mid-water

Warmer water tends to float near the surface because (select all that apply)

• it has higher density

• It has lower density

• the sun heats the water

• warmer water increases volume

Tags

NGSS.MS-ESS2-4

Which of the following water types would be found at the surface (choose only one)

• Warm, fresh water

• Warm salty water

• cold, salty water

• cold, fresh water

The salinity of water along a depth profile was measured. Which of the following salinity results would most likely be found at the deepest point of the profile.

• 15ppt

• 38ppt

• 20ppt

• 26ppt

Zone of rapid salinity increase with depth

• Halocline

• Pycnocline

• Thermocline

Zone of rapid temperature change with depth

• Pycnocline

• Halocline

• Thermocline

Ocean layers can be mixed do to (select all that apply)

• Strong winds

• Wave action

• Currents and upwelling

• Calm Seas

Tags

NGSS.MS-ESS2-6

In which of the following regions is the temperature gradient less dramatic (more consistent from surface to deep water).

• Tropics

• Mid-Latitudes

• Polar regions

Tags

NGSS.MS-ESS2-6

The water at the bottom of the ocean does not freeze because

• Increased salinity decreases the freezing point

• Decreased salinity decreases the freezing point