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WorksheetsBuilding a Timeline Geologic Time
Total questions: 23
Worksheet time: 21mins
Name
Class
Date
1.
The largest division of the geologic time scale is the
a)
eon
b)
era
c)
epoch
d)
period
2.
The Mesozoic Era was the Age of Reptiles, and the current Cenozoic Era is the Age of
a)
Birds
b)
Ice
c)
Mammals
d)
Humans
3.
The _________ was an era dominated by the dinosaurs
a)
Precambrian
b)
Paleozoic
c)
Mesozoic
d)
Cenozoic
4.
The boundaries between _______ seem to coincide with major changes in the life forms present on Earth.
a)
Precambrian
b)
Systems
c)
Eras
d)
Epochs
5.
Fossils are most common in which rock types?
a)
sedimentary
b)
igneous
c)
metamorphic
d)
all of these commonly contain fossils
6.
Which of the following is used by geologists to determine the relative ages in a rock sequence?
a)
stratigraphy
b)
fossils
c)
cross-cutting relationships
d)
all of these
7.
What is the definition of Geologic Time Scale ?
a)
A record of the geologic events and life forms in Earth’s history
b)
Fossils of widely distributed organisms that lived during only one short
period.
c)
A fossil that is a copy of an organism’s shape, formed when minerals
seep into a mold
d)
Fossils of widely distributed organisms that lived during only one short
period.
8.
Known as the age of the mammals?
a)
Mesozoic Era
b)
Holocene Epoch
c)
Cenozoic Era
d)
Cambrian
9.
The disappearance of a species.
a)
Evolution
b)
Extinction
c)
Migration
d)
Mutation
10.
Known as the age of the mammals?
a)
Mesozoic Era
b)
Holocene Epoch
c)
Cenozoic Era
d)
Cambrian
11.
Paleozoic, Mesozoic & Cenozoic are all
a)
Epochs
b)
Eras
c)
Periods
d)
Eons
12.
Which division on the geologic time scale is the shortest?
a)
epoch
b)
era
c)
eon
d)
period
13.
Which is the most recent era of time- the one that we are currently in?
a)
Mesozoic
b)
Paleozoic
c)
Cenozoic
d)
Precambrian
14.
Rock layers are always _____ than the layers above them.
a)
older
b)
younger
15.
Which shows the correct order of Geologic Time units from longest to shortest?
a)
Eon - Period - Epoch - Era
b)
Era - Epoch - Eon - Period
c)
Eon - Era - Period - Epoch
d)
Period - Eon - Epoch - Era
16.
3. In what time period did Pangaea, the super continent, appear?
a)
A. Precambrian Time
b)
B. Paleozoic Era
c)
C. Mesozoic Era
d)
D. Cenozoic Era
17.
4. Dinosaurs, small mammals, and birds are found in this time period.
a)
A. Precambrian Time
b)
B. Paleozoic Era
c)
C. Mesozoic Era
d)
D. Cenozoic Era
18.
5. Which time period is the longest?
a)
A. Precambrian Time
b)
B. Paleozoic Era
c)
C. Mesozoic Era
d)
D. Cenozoic Era
19.
Approximately how old is the Earth?
a)
4.6 by
b)
4.6my
c)
4.6 ty
d)
450 years old
20.
The whole geologic history of the Earth divided into units of varying magnitude:
a)
Geologic time scale
b)
Eons
c)
Phanerozoic
d)
Eras
e)
Paleozoic
21.
Eons are divided into these smaller units:
a)
Geologic time scale
b)
Eons
c)
Phanerozoic
d)
Eras
e)
Paleozoic
22.
Each era can be further divided into:
a)
Mesozoic
b)
Periods
c)
Epochs
d)
Cenozoic
e)
Paleozoic
23.
Each period can be divided still into smaller units called:
a)
Mesozoic
b)
Periods
c)
Epochs
d)
Cenozoic
e)
Paleozoic
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