WorksheetsChapter 13: Earth's History
Total questions: 30
Worksheet time: 15mins
Name
Class
Date
1.
What major event marked the end of the Paleozoic?
a)
Ice Age
b)
Mass Extinction
c)
Arrival of Reptiles
d)
A Great Flood
2.
Which era is known as “The Age of the Dinosaurs”?
a)
Precambrian
b)
Paleozoic
c)
Mesozoic
d)
Cenozoic
3.
When did the Paleozoic Era occur?
a)
after Precambrian Time
b)
after the Mesozoic Era
c)
before Precambrian Time
d)
after the Cenozoic
4.
The era that humans first appeared was
a)
Cenozoic
b)
Paleozoic
c)
Precambrian
d)
Mesozoic
5.
Large areas of exposed Precambrian rock are known as
a)
alloys
b)
shields
c)
deposits
d)
continental crust
6.
What is the first era/unit of geologic time?
a)
Paleozoic
b)
Precambrian
c)
Cenozoic
d)
Mesozoic
7.
By most scientific estimates, the Earth was formed ______ years ago.
a)
4.6 billion
b)
4.6 million
c)
46 million
d)
46 thousand
8.
“Lizard-hipped” dinosaurs are grouped together as
a)
ornithischians
b)
saurischians
c)
pterosaurs
d)
ichthyosaurs
9.
How long ago did most dinosaurs go extinct?
a)
65 million years ago
b)
540 million years ago
c)
10,000 years ago
d)
200 million years ago
10.
What is the relationship between sea levels and glaciation (formation of glaciers)?
a)
as the amount of glaciers decreases, sea levels also decrease
b)
as the amount of glaciers increases, sea levels drop
c)
as the amount of glaciers increases, sea levels also increase
d)
glaciation and sea levels are unrelated
11.
The supercontinent Pangaea formed during which era?
a)
Paleozoic
b)
Precambrian
c)
Mesozoic
d)
Cenozoic
12.
The Precambrian Era includes _____ of Earth's history.
a)
30%
b)
55%
c)
88%
d)
97%
13.
Why were large mammals able to thrive during the Cenozoic?
a)
the cold temperatures
b)
the hot temperatures
c)
the increase in shallow seas
d)
the amount of volcanic activity increasing
14.
Humans first arrived during the
a)
Early Paleozoic
b)
Early Cenozoic
c)
Late Cenozoic
d)
Late Paleozoic
15.
The gradual development of new organisms from pre-existing organisms is called
a)
evolution
b)
mass extinction
c)
adaptation
d)
uniformitarianism
16.
On a geologic column, the oldest rocks typically
a)
are on the bottom
b)
are on the top
c)
in the middle
d)
mixed throughout
17.
The first period of the Mesozoic Era was called the
a)
Cretaceous Period
b)
Triassic Period
c)
Jurassic Period
d)
Tertiary Period
18.
The two major groups of dinosaurs during the Jurassic Period were the saurischians and the
a)
pterosaurs
b)
ornithischians
c)
ichthyosaurs
d)
avian reptiles
19.
According to the impact hypothesis, dinosaurs became extinct when
a)
the continents underwent great movement
b)
volcanic activity increased
c)
Earth's climate became much warmer
d)
a giant meteorite/asteroid/comet crashed into Earth
20.
The most common Precambrian fossil is the _________.
a)
jawless fish
b)
stromatolite
c)
jellyfish
d)
trilobite
21.
The method of using radioactive decay to measure the absolute age of rocks is
a)
radiometric dating
b)
radioactive dating
c)
decay dating
d)
blind dating
22.
What are eras divided into?
a)
eons
b)
periods
c)
centuries
d)
geologic time
23.
Cyanobacteria created this gas during the Precambrian Era that allowed for new organisms to thrive.
a)
Carbon dioxide
b)
Hydrogen
c)
Nitrogen
d)
Oxygen
24.
The Era when life first began was...
a)
Cenozoic
b)
Paleozoic
c)
Precambrian
d)
Mesozoic
25.
The single landmass that existed about 245 million years ago is named what?
a)
North America
b)
Pangaea
c)
Tectonic Plates
d)
Gondwanaland
26.
What era is sometimes referred to as the Age of Fish?
a)
Cenozoic
b)
Mesozoic
c)
Paleozoic
d)
Precambrian
27.
The Cenozoic Era is known as the
a)
Age of Reptiles
b)
Age of Fish
c)
Age of Evolution
d)
Age of Mammals
28.
Which of the following describes how Earth’s atmosphere
changed during Precambrian time?
changed during Precambrian time?
a)
the amount of carbon dioxide increased
b)
Torrential rains never reached the surface until the Paleozoic
c)
The amount of oxygen increased
d)
Precambrian oxygen was quickly used up by plants
29.
During the Ordovician period of the early Paleozoic era, the first jawless fishes appeared on Earth. These organisms belong to a group known as
a)
corals
b)
vertebrates
c)
mollusks
d)
trilobites
30.
Amphibians were able to diversify so successfully during the Paleozoic era because
a)
they were able to breathe both oxygen and carbon dioxide
b)
they had little competition from other land organisms
c)
they were the largest organisms at that time
d)
they were the only organisms that used gills to breathe
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