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WorksheetsGeologic Time
Total questions: 10
Worksheet time: 26mins
Name
Class
Date
1.
When did this creature live?
a)
Triassic-Jurassic
b)
Jurassic-Silurian
c)
Cretaceous-Tertiary
d)
Eocene-Oligocene
2.
The period of time where conditions were harsh and no life forms existed was the
a)
Pleistocene
b)
Cambrian
c)
Hadean
d)
Holocene
3.
The period when huge land plants were dominant and eventually became the coal and oil we use today.
a)
Cambrian
b)
Carboniferous
c)
Jurassic
d)
Miocene
4.
What type of event usually marks the end of an Era
a)
A Mass Extinction
b)
A Quinceanera
c)
An earthquake
d)
A Volcanic Eruption
5.
Which era is the most recent, the one that we are currently in?
a)
Mesozoic
b)
Paleozoic
c)
Cenozoic
d)
Precambrian
6.
Scientists chose where units of geologic time began and ended based on the appearance or disappearance of life.
a)
true
b)
false
7.
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
8.
Which of the following statements about the fossil record is true?
a)
all organisms become fossils
b)
organisms having soft body parts make up most of the fossils
c)
all organisms that have shells become fossils
d)
the fossil record is incomplete
9.
Which of the following is NOT a reason a species may become extinct?
a)
competition
b)
reproducing
c)
habitat loss
d)
overhunting
10.
Which statement is true of Natural Selection?
a)
It is the same process as artificial selection
b)
It is the mechanism of evolution
c)
Animal and plant breeders select desired traits to produce changes in a species
d)
It is a much shorter process than artificial selection
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