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Dating Methods
Test Description: Vocabulary
Instructions: Answer all questions to get your test result.
1) The age of a rock given as the number of years since the rock formed.
A
relative
B
geology
C
unconformity
D
absolute
2) The age of a rock compared to the ages of rock layers. (approximately)
A
radiometric
B
fault
C
absolute
D
relative
3) The time it takes for half of the atoms in a radioactive element to decay
A
absolute dating
B
atomic decay
C
isotope
D
half-life
4) Older rocks lie below the youngest rocks.
A
Law of Gravity
B
Unconformity
C
Cabon-14 dating
D
Law of Superposition
5) The breakdown of a radioactive isotope, releasing particles and energy.
A
Radioactive decay
B
Relative dating
C
Atomic decay
D
Fusion
6) A gap in the geologic column...
A
fault
B
unconformity
C
intrusion
D
extrusion
7) The Law of Superposition states...
A
older rocks are below the youngest rocks
B
younger rocks are below older rocks
C
all rocks are the same age
D
older rocks are above younger rocks
8) Carbon-14 is an example of ...
A
fossil
B
a fault
C
an intrusion
D
an isotope
9) Index fossil have 2 requirements...
A
are common and lived a short time
B
are common and lived a very long time
C
very rare and lived a short time
D
very rare and lived a long time
10) The Geologic Time Scale
A
helps scientists determine past climates
B
does not exist
C
organizes earth's major events so earth's history is easier to study
D
helps scientists determine the seasons
11) Air bubbles trapped inside ice cores help scientists determine...
A
past climates/atmospheric change
B
relative age of rocks
C
types of fossils in an area
D
absolute age of rocks
*select an answer for all questions
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