Currents, Waves, And Tides

15 Questions  I  By Sciencerules99 on January 26, 2010
Test over currents, waves, and tides aimed at sixth grade earth science students.

  

Question Excerpt

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1.  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.
2.  ______________ water rises and ________________ water sinks
A.
B.
C.
D.
3.  The amount of salt in a given amount of water is:
A.
B.
C.
D.
4.  The highest point of a wave is:
A.
B.
C.
D.
5.  Density currents are caused by:
A.
B.
C.
D.
6.  The lowest point of a wave is the:
A.
B.
C.
D.
7.  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.
8.  What type of ocean motion is influenced by the moon and the sun?
A.
B.
C.
D.
9.  What causes the currents to curve instead of moving in straight lines?
A.
B.
C.
D.
10.  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.
11.  Surface currents are caused by
A.
B.
C.
D.
12.  When the sun, moon, and earth are all aligned (in a straight line), you have a
A.
B.
C.
D.
13.  This occurs when circulation in the ocean brings deep, cold water to the ocean surface:
A.
B.
C.
D.
14.  What is the main cause of the gulf steam?
A.
B.
C.
D.
15.  The size of a wave is NOT affected by the:
A.
B.
C.
D.
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