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WorksheetsGeology Review
Total questions: 10
Worksheet time: 9mins
Name
Class
Date
1.
The biggest unit of time on the Geologic Time Scale is
a)
an era
b)
a period
c)
an eon
d)
an epoch
2.
Eras a broken into
a)
eons
b)
periods
c)
epochs
d)
millions of years
3.
Of the following organisms, which was around (or has been around) for the shortest amount of time?
a)
Dinosaurs
b)
Mammals
c)
Humans
d)
Reptile
4.
The geologic time scale is divided by major changes or events such as
a)
mass extinctions
b)
the extinction of one species
c)
the development of one new species
d)
a small temperature change
5.
What is the difference between relative dating and absolute dating?
a)
Relative dating provides the exact age of a rock, while absolute dating provides a rough estimate of the rock’s age
b)
Relative dating can estimate a rock’s age only in relation to other objects or events, while absolute dating can provide an actual age
c)
Relative dating uses several types of radioactive decay to determine an object’s relative age, while absolute dating only uses the halflife of uranium 235
d)
Relative dating and absolute dating can only determine the rock’s age in relation to other objects or events
6.
What is the primary purpose of index fossils?
a)
They help scientists determine the absolute age of sedimentary rocks
b)
The help scientists determine the relative age of rocks
c)
They help scientists indentify mass extinctions in Earth’s history
d)
They provide scientists with evidence for the theory of evolution by natural selection
7.
One possible reason for the mass extinction during the Cretaceous period is due to an asteroid landing on Earth. How do you suppose an asteroid impacted the ecosystem in the area where it landed?
a)
The asteroid would cause avalanches, which buried the animals
b)
The dust from the impact would blacken the skies, preventing the plants from carrying out photosynthesis
c)
The dust from the asteroid would make all animals sterile
d)
The asteroid would carry dangerous radiation from outer space, which would wipe out the living things on Earth
8.
Charles Darwin proposed the idea that organisms that are best suited so their environments will survive and reproduce. What is this theory known as?
a)
Adaptation
b)
Variation
c)
Inherited characteristics
d)
Natural selection
9.
All of the following play a role in natural selection except:
a)
Competition for limited resources
b)
The production of very few offspring within a species
c)
Variations between individuals in the same species
d)
Inherited traits that help members of a species survive
10.
A missing rock layer or a disturbance in a rock layer is caused by
a)
The law of superposition
b)
Volcanoes
c)
Index fossils
d)
An unconformity
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