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Currents, Waves, And Tides

15 Questions  I  By Sciencerules99
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Currents, Waves, And Tides
Test over currents, waves, and tides aimed at sixth grade earth science students.

  
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Question Excerpt

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1.  When the sun, moon, and earth are all aligned (in a straight line), you have a
A.
B.
C.
D.
2.  Density currents are caused by:
A.
B.
C.
D.
3.  When the wind blows across a body of water (like the ocean), ________________ between the water and air causes the water to move.
A.
B.
C.
D.
4.  The size of a wave is NOT affected by the:
A.
B.
C.
D.
5.  The highest point of a wave is:
A.
B.
C.
D.
6.  The wind blows on the water, passing it's energy to the water. As this energy passes through the water, in what way do the water molecules move?
A.
B.
C.
D.
7.  This occurs when circulation in the ocean brings deep, cold water to the ocean surface:
A.
B.
C.
D.
8.  What causes the currents to curve instead of moving in straight lines?
A.
B.
C.
D.
9.  The sun's rays are strongest at the____________ and weakest at the _______________:Hint: the stronger the rays, the hotter it gets!!!
A.
B.
C.
D.
10.  The lowest point of a wave is the:
A.
B.
C.
D.
11.  ______________ water rises and ________________ water sinks
A.
B.
C.
D.
12.  What type of ocean motion is influenced by the moon and the sun?
A.
B.
C.
D.
13.  The amount of salt in a given amount of water is:
A.
B.
C.
D.
14.  Surface currents are caused by
A.
B.
C.
D.
15.  What is the main cause of the gulf steam?
A.
B.
C.
D.
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