2nd Nine Weeks ReviewScience

• How much of the Earth’s surface is covered by water?

A. 10%

B. 25%

C. 70%

D. 90%

A

B

C

D

E

• In the picture above, the continental slope is shown by letter

A. A

B. B

C. D

D. E

A

B

C

D

E

• Letter D is pointing to an ocean floor feature known as a(n)

A. continental rise

B. seamount

C. abyssal plain

D. Trench

A

B

C

D

E

• The shallowest part of the ocean floor is the

A. continental slope

B. trench

C. continental shelf

D. abyssal plain

• Ocean water is composed of a mixture of gases and dissolved solids like…

A. salt

B. gold

C. carbon

D. wood

• Which of the following does NOT affect the salinity of ocean water?

A. evaporation

B. rainfall

C. amount of sea life

D. runoff from land

• Which of the following is the main cause of ocean waves?

A. rain

B. wind

C. ships

D. swimming animals

• The tides are created by the pull of

A. the Sun

B. the Moon

C. both the Sun and the Moon

D. the wind

When the Earth, Moon and Sun line up as in the picture above, the area of the oceans shown by the star experience

A. high tides

B. low tides

C. no tides

D. tsunamis

• Which of the following does NOT cause ocean currents?

A. Earth’s rotation

B. differences in water density due to temperature and salinity

C. earthquakes

D. winds

• The climate of East Coast of the U.S. is warmed by the

A. spring tides

B. Gulf Stream

C. California current

D. North Atlantic Drift

• Ocean currents do NOT affect

A. navigation routes

B. the tides

C. the mixing of ocean waters

D. plant and animal populations

• As the depth of the ocean water increases, the temperature

A. increases

B. decreases

C. stays the same

D. freezes

• Why do few organisms live in zone E?

A. The temperature is too hot.

B. There is not enough water pressure.

C. There is not enough salinity.

D. There is not enough light.

• 80% of the Earth’s oxygen is produced by

A. phytoplankton

B. zooplankton

C. nekton

D. benthos

• Floating animals, like fish eggs and jelly fish, are

A. phytoplankton

B. zooplankton

C. nekton

D. benthos

• An example of nekton is

A. clams

B. diatoms

C. larvae

D. whales

• Benthos can be found

A. on the ocean floor

B. at top of seamounts

C. floating on the surface of the ocean

D. floating in the Gulf Stream

• Which organism completes this food chain?

phytoplankton ? salmon seal

A. lobsterB. whaleC. zooplanktonD. eel

• I have been trapped in this piece of limestone for ages- even before it was a rock! I help scientists learn about organisms from the past. I am a-

• A. Rock

• B. Magma

• C. Fossil

• D. Lava

• If great heat and pressure act upon any type of rock, what will it become?

• A. sedimentary rock

• B. igneous rock

• C. sandstone

• D. metamorphic rock

• What does the theory of plate tectonics attempt to explain?

• A. why the sea is saltier in some places other than others.

• B. how fossils are formed

• C. the way the planets move around the stars

• D. how and why continents move

• If igneous rocks are broken down by erosion and weathering, they may be carried somewhere else. These particles in turn may be used to form what other kind of rock?

• A. sedimentary rock• B. igneous rock• C. obsidian• D. metamorphic rock

• The two innermost layers of the Earth are made up of-

• A. rocks

• B. molten iron and nickel

• C. sedimentary rocks

• D. ice

• Trenches and mountains on the Earth’s surface were caused by-

• A. plate movement

• B. the moon’s gravity

• C. the sun’s heat

• D. erosion

• Most earthquakes and volcanoes occur-

• A. at the boundaries of the Earth’s plates.

• B. where the sun is the warmest.

• C. where there is the most erosion.

• D. at the northern part of the earth.

• Igneous rocks are created when-

• A. it rains

• B. molten rock cools and forms crystals

• C. sediment hardens

• D. weathering occurs

• The outermost layer of the Earth is called the-

• A. crust

• B. mantle

• C. inner core

• D. outer core

• The heat that causes volcanoes comes from-

• A. the sun’s radiation

• B. the friction of earthquakes

• C. the Earth’s hot interior

• D. the impact of meteors

• When plates move toward each other they create…

• A. divergent boundaries

• B. convergent boundaries

• C. sliding boundaries

• D. new continents

• The Earth’s crust is broken into large sections called-

• A. plates

• B. volcanoes

• C. faults

• D. magma

• All of the following are true about igneous rocks EXCEPT-

• A. they are formed from cooled and hardened magma.

• B. Examples include granite and obsidian.• C. They were transformed by heat,

pressure and chemicals.• D. They are part of the rock cycle.

• Which one of the following events occurs in the formation of sedimentary rock?

A. Crystallization

B. Melting

C. Cooling

D. Weathering

Which of these best represents the structure of the Earth’s interior?

• Use the rock key below to answer the following question by placing the correct letter in the blank.

• A rock that has no layers, is light colored, is hard and coarse grained is…A. GneissB. MarbleC. GraniteD. Basalt