WorksheetsGeology - E.2
Total questions: 10
Worksheet time: 23mins
Name
Class
Date
1.
The Law of Crosscutting states that a fault or intrusion is __________ than the bodies of rock it cuts through.
a)
younger
b)
older
c)
funnier
d)
nastier
2.
Which layer is the oldest ?
a)
A
b)
E
c)
D
d)
F
3.
According to the law of superposition, the oldest fossils are found
a)
At the top of the rock layers
b)
Near the bottom of the rock layers
c)
In the middle of the rock layers
d)
Somewhat near the surface
4.
Which best describes radiometric dating?
a)
using instruments that detect radioactivity to figure out how old something is
b)
measuring the relative amounts of a radioactive isotope and a daughter product to figure out the age of a sample
c)
measuring how quickly the different radioactive isotopes in a sample decay to figure out the age of the sample
d)
using short-wavelength electromagnetic radiation to determine the age of a sample
5.
Which type of dating method can be used on rock layers by applying the Law of Superposition?
a)
relative dating
b)
absolute dating
c)
radioactive dating
d)
radiometric dating
6.
The length of time required for half of the radioactive atoms in a sample to decay is its...
a)
era
b)
age
c)
half-life
d)
eon
7.
Scientists use radioactive decay to measure...
a)
the inferred age
b)
the actual age
c)
the pH level
d)
type of fossil
8.
_______________ is the idea that older rock layers can be found below younger rock layers in undisturbed geologic columns.
a)
principal of original horizontality
b)
principal of superposition
c)
principal of cross-cutting relationships
d)
principal of unconformities
9.
What makes using radioactive material useful for dating rock layers?
a)
it is dangerous to be near
b)
it decays at a constant rate
c)
sedimentary rock layers don't have radioactive material
d)
it can only be found in metamorphic rock
10.
What is a Fossil?
a)
Any dead organism
b)
The preserved remains or traces of an organism
c)
A perfect copy of a rock
d)
None of the above
100 %
