2/20/19 Clicker questions - University at Buffalo...2/20/19 1 Clicker questions Scientific method,...
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2/20/19 1 Clicker questions Scientific method, earth, geologic time In order to be considered scientific an explanation must be: A. Based on observation of the natural world B. Able to be tested C. Completely proven D. A & B 60 The principle of uniformitarianism is summarized as: A. The present is the key to the future. B. The future is the key to the past. C. The present is the key to the past. D. The past is the key to the present. 60 Most of Earth is: A. Solid. B. Liquid. C. Lava. D. Magma. 60 Which is the densest layer of Earth? A. Core B. Mantle C. Crust 60 Why is the inner core frozen solid whereas the outer core is liquid? A. It is colder in the inner core. B. Pressure is higher in the inner core. C. Pressure is lower in the inner core. D. There is less iron in the inner core. 60 Which layer of the Earth contains most of the iron in the planet? A. Crust B. Mantle C. Core 60 What data helps geologists understand Earth’s interior? A. Seismic waves B. Meteorites C. Experimental work with high pressure D. All of the above 60 What is the main source of energy driving plate tectonics and the geodynamo? A. Solar energy B. Radioactive decay C. Remnants of original heat from Earth formation D. B & C 60
Transcript of 2/20/19 Clicker questions - University at Buffalo...2/20/19 1 Clicker questions Scientific method,...
2/20/19
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Clicker questionsScientific method, earth, geologic time
In order to be considered scientific an explanation must be:A. Based on observation of
the natural worldB. Able to be testedC. Completely provenD. A & B
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The principle of uniformitarianism is summarized as:
A. The present is the key to the future.
B. The future is the key to the past.
C. The present is the key to the past.
D. The past is the key to the present.
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Most of Earth is:A. Solid.B. Liquid.C. Lava.D. Magma.
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Which is the densest layer of Earth?A. CoreB. MantleC. Crust
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Why is the inner core frozen solid whereas the outer core is liquid?
A. It is colder in the inner core.
B. Pressure is higher in the inner core.
C. Pressure is lower in the inner core.
D. There is less iron in the inner core.
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Which layer of the Earth contains most of the iron in the planet?
A. CrustB. MantleC. Core
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What data helps geologists understand Earth’s interior?
A. Seismic wavesB. MeteoritesC. Experimental work
with high pressureD. All of the above
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What is the main source of energy driving plate tectonics and the geodynamo?
A. Solar energyB. Radioactive decayC. Remnants of original
heat from Earth formation
D. B & C
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The asthenosphere is made up of which compositional layers?
A. CrustB. Crust and mantleC. MantleD. Mantle and core
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A
E
D
C
B
Which is the oldest rock unit?
A. EB. BC. CD. D
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Which principle did you use to identify the oldest rock unit?
A. Original horizontalityB. SuperpositionC. Faunal successionD. Cross-cutting relationships
A
E
D
C
B60
A
ED
B
Which unit formed after C but before A? A. BB. DC. E
C
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Which principle did you use to identify the relative order of A and C?
A. Original horizontalityB. SuperpositionC. Faunal successionD. Cross-cutting relationships
A
ED
BC
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Which is older, the intrusion (A) or the fault?
A. IntrusionB. Fault
A
ED
BC
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Which feature is the youngest?A. 1 (grey rock)B. 2 (black rock)C. 3 (white rock)
3 (white)2 (black)1 (grey)
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Examine the relative positions of the lettered arrows on the timeline below and estimate the ages represented by each arrow. Which letter corresponds most closely to the formation of Earth?
A. AB. DC. ED. F
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Which geologic time interval is the shortest?A. EraB. EpochC. PeriodD. They are the same
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