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WorksheetsMass Extinction and Geo Time Review
Total questions: 22
Worksheet time: 24mins
Name
Class
Date
1.
At the end of the Mesozoic Era there was a mass extinction. Which of the following is attributed as being the main cause?
a)
asteroid or comet impact
b)
major volcanic eruption
c)
earthquakes
d)
climatic changes
2.
Which of the following correctly lists the geologic time periods in order from OLDEST to MOST RECENT?
a)
Precambrian, Mesozoic, Paleozoic, Cenozoic
b)
Cenozoic, Mesozoic, Paleozoic, Precambrian
c)
Precambrian, Paleozoic, Mesozoic, Cenozoic
d)
Mesozoic, Paleozoic, Precambrian, Cenozoic
3.
On the geologic time scale, eras are divided in to
a)
Epochs
b)
Periods
c)
Indexes
d)
Relative dates
4.
In what era were dinosaurs the dominant species?
a)
Cenozoic
Cenozoic
b)
Paleozoic
c)
Mesozoic
d)
Quarternary
5.
The earliest forms of life appeared during the
a)
Paleozoic Era
b)
Cenozoic Era
c)
Precambrian Time
d)
Mesozoic Era
6.
What is the final span of geologic time?
a)
Mesozoic
b)
there is none - geologic time is ongoing
c)
the modern period
d)
the post-Cenozoic epoch
7.
Which is the correct order to time units from smallest to largest?
a)
Epoch, period, era, eon
b)
Epoch, era, period, eon
c)
Eon, era, period, epoch
d)
Period, eon, epoch, era
8.
What event marks the end of each geologic area?
a)
1 million years
b)
burst of new life forms
c)
mass extinction
d)
ice age
9.
During which geologic time or era did humans first appear?
a)
Cenozoic
b)
Mesozoic
c)
Paleozoic
d)
Precambrian
10.
During which geologic era did trilobites, mosses and ferns first appear in the fossil record?
a)
Paleozoic
b)
Mesozoic
c)
Cenozoic
d)
Precambrian
11.
The Cenozoic Era is often called "the Age of the ____"
a)
Dinosaurs
b)
Mammals
c)
Amphibians
d)
Reptiles
12.
Which division on the geologic time scale is the shortest?
a)
epoch
b)
era
c)
eon
d)
period
13.
During which Era appeared the earliest reptiles?
a)
Cenozoic
b)
Paleozoic
c)
Mesozoic
d)
Precambrian
14.
What time Era do we live in?
a)
Triassic
b)
Cenozoic
c)
Paleozoic
d)
Tertiary
15.
Which of the Eras lasted for the longest period of time?
a)
Paleozoic
b)
Precambrian
c)
Mesozoic
d)
Cenozoic
16.
During the Mesozoic Era we find the following Periods:
a)
Cretaceous, Permian, Cambrian
b)
Silurian, Cambrian, Devonian
c)
Triassic, Jurassic, Cretaceous
d)
Triassic, Jurassic, Devonian
17.
What type of animal lived only during the Mesozoic Era?
a)
Mammals
b)
Birds and Mammals
c)
Dinosaurs
d)
All of them
18.
Algae blooms and other plant life caused the levels of CO2 in the atmosphere to increase so much that life in the oceans decreased by 90%. This mass extinction ended the _____ era.
a)
Mesozoic
b)
Paleozoic
c)
Cenozoic
d)
Precambrian
19.
"age of marine life"
a)
Precambrian Era
b)
Mesozoic Era
c)
Cenozoic Era
d)
Paleozoic Life
20.
The Geologic Time Scale is a record of what?
a)
old geologists
b)
sweet geology music
c)
the known history of rocks and fossils
d)
a list of every living thing ever
21.
What is a mass extinction?
a)
When all the species in a particular area on earth suddenly go extinct
b)
When multiple species from all over the earth suddenly go extinct
c)
When one species goes extinct due to habitat changes
d)
When all life on earth is wiped out
22.
How old do Paleontologists believe the Earth is?
a)
2015 years old
b)
3.6 billion years old
c)
4.6 billion years old
d)
4.6 million years old
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