Share/Like This Page
Print Instructions

NOTE: Only your test content will print.
To preview this test, click on the File menu and select Print Preview.




See our guide on How To Change Browser Print Settings to customize headers and footers before printing.

Seawater (Grade 10)

Print Test (Only the test content will print)
Name: Date:

Seawater

1. 
Salinity is a constant factor of seawater that does not change from one place to another in the same ocean.
  1. True
  2. False
 
2. 
The temperature of seawater varies by latitude; the lower the latitude the lower the temperature, the higher the latitude the higher the temperature.
  1. True
  2. False
3. 
The amount of dissolved salts in ocean water is called
  1. salinity
  2. turbidity
  3. upwelling
  4. current
 
4. 
The rising of deep cold currents to the ocean surface is called
  1. surfing
  2. mapping
  3. reefing
  4. upwelling
5. 
Which type of seawater has the greatest density?
  1. warm, with low salinity
  2. warm, with high salinity
  3. cold, with low salinity
  4. cold, with high salinity
 
6. 
Which ocean movement is slow-moving and occurs in deep waters?
  1. surface currents
  2. upwelling
  3. density currents
  4. waves
7. 
The most common substance dissolved in seawater is                    .
  1. magnesium sulfate
  2. sodium chloride
  3. sodium nitrate
  4. uranium hexafluoride
 
8. 
Which process does NOT add salt to seawater?
  1. weathering of continental rock washed to the ocean by rivers and streams
  2. decay of hard-shelled sea creatures
  3. rain
  4. volcanoes
9. 
What evidence indicates that the salt content of ancient oceans was about the same as it is today?
  1. seafloor sediments
  2. comparisons of modern seashells and old fossil shells
  3. ancient lava flows that formed in seawater
  4. salt content in surface water versus the salt content in bottom water
 
10. 
In some countries, people are interested in taking the salt out of the seawater. Why do you think this is so?



You need to be a HelpTeaching.com member to access free printables.
Already a member? Log in for access.    |    Go Back To Previous Page