Ocean Chemical and Physical Properties

As the temperature of ocean water changes from 10 to 30 degrees C becoming warmer, how does the density change?

• The water becomes more dense

• The water becomes less dense

• The density does not change

• It is impossible to predict

Tags

NGSS.MS-PS1-4

What is the temperature, salinity, and density like at the surface zone of the ocean (top) as compared to the deep zone (bottom) of the ocean?

• colder temperature, more salinity, and more dense

• colder temperature, more salinity, and less dense

• warmer temperature, less salinity, and less dense

• Warmer temperature, less salinity, and more dense

Tags

NGSS.MS-ESS2-6

Which of the following statements are true? (Select ALL that apply)

• Saltwater is more dense that freshwater

• Freshwater is more dense than saltwater

• Freshwater layers below freshwater because water (H₂0) has more mass than salt (NaCl)

• Saltwater layers below freshwater because the salt molecule (NaCl) has more mass than the water molecule (H₂0)

Tags

NGSS.MS-PS1-1

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

• increases
• decreases
• stays the same
• doubles

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

• depth
• latitude
• temperature
• salt content

What is the scientific name for salt? 

• Sodium Acetate 
• Sodium Chloride 
• Chloride sodium 
• Hydroxide sulfate 

As we go deeper into the ocean, salinity ___________. 

• Doubles
• Decreases 
• Increases
• Remains the same 

As you go deeper in the ocean, the water is warmer and less salty.

• True
• False

Tags

NGSS.MS-ESS2-6

The amount of salt found in water is -

• temperature
• salinity
• pollution
• clarity

As salinity  increases

• Density increases
• Density decreases

Tags

NGSS.MS-PS1-4