Properties of Ocean Water

Which of the following samples of ocean water would be most dense?

• a very warm and very salty sample

• a moderately warm and moderately salty sample

• a moderately cold and moderately salty sample

• a very cold and very salty sample

Ocean water has a high salt content. Which term describes the amount of salt dissolved in water?

• heat capacity

• salinity

• density

• pressure

If some ocean water has low salinity and a high temperature, what can we tell about its density?

• It has high density.

• We would need more information to determine its density.

• It has low density.

• It has a moderate density.

Tags

NGSS.MS-PS3-4

Which of the following can NOT be found dissolved within ocean water?

• Lithium

• Oxygen

• Sodium Chloride

• Carbon Dioxide

Seawater is typically denser than freshwater due to seawater’s —

• Greater depth

• Lower freezing point

• Smaller mass

• Higher salinity

True or False Salinity increases as ocean depth increases.

• True

• False

Which process does NOT lead to a decrease in the salinity of water?

• runoff from land

• precipitation

• sea ice melting

• evaporation

Which term refers to a rapid change of temperature with increasing depth of the ocean?

• pycnocline

• thermocline

• abyssalocline

• isothermal cline

In addition to salinity, what factor affects the density of seawater?

• depth

• latitude

• temperature

• salt content

Tags

NGSS.MS-PS3-4

What happens to pressure as you go deeper into the ocean? 

• increases

• decreases

• stays the same

• doubles