OCEAN BIOME UNIT TEST

I.  Answer the following questions.

1. Which is heavier, cold water or hot water?

_____________________________________________________________________.

2. What is a tide?

____________________________________________________________________________________________

__________________________________________________________________________________________________________.

3. What causes tides?

_____________________________________________________________________________________.

4. In which hemisphere do currents flow clockwise?

_______________________________________________________________.

5. What kind of animal life is a lobster?

_________________________________________________________________________.

II. Multiple Choice. Choose the correct answer and write it in the space.

1. When Earth, moon, and sun are in line with one another, a __________________________________ tide occurs.

a. neap tide            b. spring ride              c. current

2. A current that flows past the eastern coast of the United States is the _________________________________________.

a. Gulf Stream       b. North Atlantic          c. West Wind Drift

3. Temperature differences of the water in the ocean cause_________________________________.

a.     winds             b. waves              c. currents

4. Winds that blow over most of the United States are called ___________________________________________.

a. Easterlies           b. Westerlies              c. Trade Winds

5. Tides are produced by _________________________________________.

a. currents            b. salinity             c. gravitational pull

6. Sand is actually ________________________________________________________.

a. soil                b. broken rocks               c. salt

7. A tidal pool is ___________________________________________________.

a. a place for people to swim         b. the area where seawater is left when the tide leaves               c. a lake

8. A whale is a _____________________________________.

a. crustacean             b. fish              c. mammal

9. There are _____________________ oceans.

a. one                b. two                 c. four

10. _____________________________________ is the name given to microscopic plant and animal life found in the sea.

a. Whales             b. Plankton                c. Algae

III.  True- False  Answer the following questions either true or false.

1.  The interconnected waters of the ocean cover over 70 percent of the Earth's surface.            True           False

2.  The ocean contains more than 90 percent of all the water on Earth.               True          False

3.  The floor of the oceans off our coasts is flat.                                  True        False  

4.  The average temperature of the oceans is   66 degrees.           True   False  

5.  More plants and animals live in the air and on the land than in the oceans.      True         False

Answer Key:

I.

1. Cold water.

2. The tide is the rise and fall of the ocean.

3.  Tides are caused by the gravitational pull of the moon and sun.

4.  The western hemisphere.

5.  A crustacean.

II.

1.  b.  spring tide

2.  a.  Gulf Stream

3.  c.  currents

4.  b.  Westerlies

5.  c.  gravitational pull

6.  b.  broken rocks

7.  b.  the area where seawater is left when the tide leaves.

8.  c.  mammal

9.  c.  four

10. a.  Plankton

III.

1.  True

2.  True

3.  False

4.  False (38 degrees)

5.  False  (9 out of every 10 organisms on Earth live in the oceans).