1. unusual weather can change the tides.
a. true *
b. false

2. the example of el niño illustrates
a. the impact of currents on weather.
b. the powerful nature of arctic winds.
c. the reason california is prone to droughts.
d. the unpredictable nature of weather patterns.

3. heat capacity refers to the amount of energy it takes to raise the temperature of a substance by
a. 1 degree.
b. 5 degrees.
c. 10 degrees.
d. 20 degrees.

4. crest is to high, as trough is to
a. low*
b. fast
c. time
d. shallow

5. the densest water in the ocean is found
a. within waves
b. closest to the surface
c. wherever there are currents
d. in the ocean’s deepest parts

6. carbon dioxide molecules cannot cling to water molecules.
a. true
b. false

7. the fact that sand gets very hot but also cools quickly illustrates which of the following?
a. the sun heats everything equally.
b. being near water makes sand cold.
c. heating and cooling are similar processes.
d. substances have differing abilities to retain heat.

8. the tsunami that hit japan in march of 2011 illustrates which of the following points?
a. most countries are unprepared for tsunamis.
b. tsunamis can cause many kinds of destruction.
c. more people are killed by tsunamis than earthquakes each year.
d. it is rare that modern nations need to be concerned about tsunamis.

9. which of the following occurs in the mesosphere?
a. meteors burn up.
b. airplanes avoid turbulence.
c. satellites move around the earth.
d. the ozone layer blocks ultraviolet rays.

10. which of the following describes the impact that heat has on water?
a. it makes the water denser.
b. it speeds up the movement of water molecules.
c. it eliminates any gases contained in the water.
d. it has little to no impact on the movement of molecules.

11. which of the following is the study of the movement of water specifically?
a. aerodynamics
b. electromagnetics
c. geodynamics
d. hydrodynamics

12. the borders of plates never change.
a. true
b. false

13. the boundaries of plates are created by which of the following?
a. marine scientists
b. the opinions of mapmakers
c. the physical edges of the plate
d. the nations on continental plates
14. convergent plate movement can create all of the following except
a. ridges.
b. valleys.
c. mountains.
d. volcanoes.

15. flash floods happen only on rainy days.
a. true
b. false

16. in most cases, tides will be predictable.
a. true
b. false

17. the equator does which of the following?
a. runs parallel to the prime meridian.
b. defines the eastern and western hemispheres.
c. indicates the direction of major ocean currents.
d. divides the northern and southern hemispheres.

18. what happens once an item breaks through the surface tension of water?
a. it sinks.
b. it floats.
c. it becomes hot.
d. it becomes cold.

19. secondary succession is often found in which of the following?
a. estuaries
b. tidal pools
c. coral reefs
d. low-tide zones

20. why do you see lightning before you hear thunder?
a. light travels faster than sound.
b. the process that creates lightning happens first.
c. thunder is actually first, but most people do not notice.
d. sometimes lightning is before thunder, other times after it.

21. watersheds generally contain fresh water.
a. true
b. false

22. which of the following is true of the inner core of the earth?
a. it is the consistency of asphalt.
b. the average temperature is 4000 degrees.
c. it is so hot that the elements vibrate in place.
d. the lightest elements on the planet can be found there.

23. the example of the great barrier reef is used to illustrate
a. the insignificance of coral reefs
b. the lack of diversity in the ecosystem
c. the consequences of increasing acidity
d. the problems that too much algae can create

24. where does the ocean get most of its heat?
a. the sun
b. deep currents
c. western winds
d. melting icebergs

25. the example of a whale beached by the tides illustrates that
a. tides occur twice a day
b. tides impact marine life
c. tides are a leading killer of whales
d. tides are usually deadly and destructive

test your knowledge : ) and get all these points