Transcript Unit 2 - Todd County Schools

Review for Unit 2 Test
Integrated science
Ms. Offutt
Test
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Tuesday
35 multiple choice
Notebook due
70 point test
All multiple choice, take on a scan tron
Bring a Pencil
• The way fossils are formed in very dry
places is called
a.mummification. c. imprinting.
b.petrification.
d. sedimentation.
• The numeric age of an object is called
a.relational age.
c. relative age.
b.comparative age.
d.
absolute age.
• Younger layers of undisturbed sedimentary
rock are above older layers according to
• a. the principle of uniformitarianism.
• c. law of superposition.
• b. the principle of sedimentarianism.
• d. angular unconformity.
• The principle that Earth’s history can be
explained by current geologic processes is
• a. unconformity.
c. superposition.
• b. uniformitarianism.
d.
evolution.
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Amber is
a. petroleum that oozes from bogs.
c. yellow rock that retains heat.
b. hardened tree sap.
d. dried organic remains.
• Index fossils found in rock layers in
different areas of the world indicate that
the rock layers
• a. formed during the same period of time.
• b. formed during different periods of time.
• c. are still forming.
• d. never fully formed.
• The age of an object in relation to the ages
of other objects is
• a. absolute age. c. relative age.
• b. comparative age. d. relational age.
• Organisms that formed index fossils
• a. lived during long spans of geologic
time.
• b. lived during short spans of geologic
time.
• c. were destroyed by igneous rocks.
• d. were destroyed by sedimentary rocks.
• A frozen organism does not decay
because
• a. most bacteria can’t survive freezing
temperatures.
• b. it is dried out.
• c. it needs water to decay.
• d. most bacteria survive freezing
temperatures.
• Why is radioactive decay used to determine the
absolute age of rocks?
• a. Radioactive decay cannot be used to
determine the age of a rock.
• b. Radioactive decay happens very quickly.
• c. Radioactive decay does not happen at a
constant rate.
• d. Radioactive decay happens at a relatively
constant rate.
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What is a coprolite?
a. fossilized fish
b. fossilized rocks
c. fossilized dung or waste
d. fossilized imprints of animals
• Which of the following are all ways that
organisms can be fossilized?
• a. freezing, petrification, desiccation, amber
• b. amber, petrification, mummification, freezing
• c. desiccation, petrification, mummification,
amber
• d. mummification, desiccation, petrification,
freezing
• Geologic time is divided into
• a. two eons. c. four eons.
• b. three eons.
d. five eons.
• Scientists created the first geologic column
by determining the relative ages of
sedimentary rock in
• a. one chosen area. c. North
America.
• b. the area where life began.
d.
areas all over the world.
• How is radioactive decay used to determine the
absolute age of rocks?
• a. Parent isotopes are compared to daughter
isotopes.
• b. Isotopes of different compounds are
compared.
• c. Radioactive substances are compared to
non-radioactive substances.
• d. Daughter isotopes are compared to sister
isotopes.
• The gradual development of new
organisms from preexisting organisms is
called
• a. natural selection. c. evolution.
• b. mass extinction.
d. environmental
change.
• A variety of life-forms appeared in the
Cambrian Period due to
• a. tectonic activity that created mountain
ranges.
• b. warm, shallow seas covering the
continents.
• c. shallow inland seas retreating.
• d. lush forests of cycads appearing.
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On a geologic column, the oldest rocks
a. are on the bottom.
b. are on the top.
c. are in the middle.
d. contain fossils of modern-day animals.
• Which of the following explains the concept of
evolution brought about by geologic change?
• a. Geologic changes have no effect on
evolution.
• b. The fossils found in the lower layers of the
geologic column resemble modern-day animals.
• c. When the seas retreated at the end of the
Permian Period, tribolites became extinct.
• d. Few fossils exist in Precambrian rocks.
• How does sediment that is closer to a midocean ridge compare to sediment that is
farther away?
• a. It is larger.
c. It is older.
• b. It is smaller. d. It is younger.
• What is the crack in the ocean floor
through which magma rises?
• a. a ridge
c. a rift
• b. a rip
d. a rent
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Tectonic plates can include
a. only asthenosphere.
b. only oceanic crust.
c. only continental crust.
d. both oceanic and continental crust.
• The Pacific Ring of Fire is
• a. a mid-ocean ridge. c. a zone of
active volcanoes.
• b. a chain of volcanic islands.
d. a
rift valley.
• The Himalaya Mountains were formed in a
collision at a
• a. divergent boundary. c. transform
boundary.
• b. convergent boundary.
d. fracture
zone.
• Which of the following was NOT a piece of
evidence Wegener found to support his
hypothesis?
• a. debris from glaciers in southern Africa
• b. mountains of similar age in North America
and Scotland
• c. tracks of continents plowing through ocean
floor rock
• d. identical Mesosaurus fossils in South
America and Africa
• The theory that explains why and how
continents move is called
• a. continental drift.
• b. paleomagnetism.
• c. plate tectonics.
• d. sea-floor spreading.
• Frequent earthquakes in an area may
indicate
• a. tectonic plate boundaries.
• b. sea-floor spreading.
• c. mantle convection.
• d. reversed polarity.
• Convection, ridge push, and slab pull work
together to produce
• a. continental lithosphere.
• b. constant tectonic plate motion.
• c. earthquakes.
• d. fracture zones.
• What is one way tectonic plate movement
affects climate?
• a. It creates mountains that affect wind
patterns.
• b. It changes the location of the equator
and the poles.
• c. It keeps ice sheets from melting.
• d. It keeps air temperatures constant.
• Which scale more accurately measures
the magnitude of large earthquakes?
• a. modified Mercalli scale
• b. Richter scale
• c. moment magnitude scale
• d. Mohs scale
• At what location does the first motion of an
earthquake occur?
• a. the focus
• b. the seismic gap
• c. the mantle
• d. the epicenter
• Which of the following is true of
earthquake prediction?
• a. It is unreliable.
• b. It is impossible.
• c. Scientists do not attempt it.
• d. It is not important.
• The three primary tectonic settings are
zones near convergent and divergent
tectonic plates, subduction zones, and
• a. mid-ocean ridges.
• b. island arcs.
• c. oceanic plates.
• d. trench zones.
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Volcanic eruptions may be signaled by
a. a change in earthquake activity.
b. a sudden weather change.
c. a change in wildlife behavior.
d. volcanic dust in the air.
• When the temperature of rock rises above
its melting point,
• a. magma will form.
• b. the melting point will increase.
• c. magma will not form.
• d. the melting point will decrease.