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