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WorksheetsA Trip Through Geologic Time
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
The process by which all the different kinds of living thngs have changed over long periods of time is called
a)
evolution
b)
extinct
c)
geo time scale
d)
dead
2.
Plant leaves may form a fossil called a _____________, a thin layer of carbon on rock.
a)
petrified fossil
b)
carbon film
c)
preserved reamin
d)
mold/cast
3.
Fossils are almost always found in
a)
metamorphic rock
b)
sedimentary rock
c)
igneous rock
d)
granite rock
4.
Plants and animals first reached land during the
a)
Mesozoic Era
b)
Cenozoic Era
c)
Paleozoic Era
d)
Precambrian
5.
An animal w/ a backbone is called a (n)
a)
invertebrate
b)
vertebrate
c)
spineless
d)
fish
6.
Dinos ruled the Earth during the
a)
Precambrian
b)
Cenozoic Era
c)
Mesozoic Era
d)
Paleozoic Era
7.
A scientist who studies fossils is called a (n)
a)
rocket scientist
b)
astronaut
c)
paleontologist
d)
a cool guy
8.
Geologists divide the Earth's long history into smaller units that make up the
a)
fossil record
b)
time line
c)
life's time scale
d)
geologic time scale
9.
Animals w/o backbones are called
a)
vertebrates
b)
jawless fishes
c)
mammals
d)
invertebrates
10.
Index fossils are useful b/c they tell the _______________ age of rock layers
a)
absolute
b)
relative
11.
Reptiles evolved from
a)
dinosaurs
b)
mammals
c)
birds
d)
amphibians
12.
Which fossil provides clues about the activities of ancient organisms?
a)
mold/cast
b)
pertified
c)
trace fossils
d)
carbon films
13.
The Mesozoic Era is often called the
a)
Age of Mammals
b)
Age of Fish
c)
Age of Reptiles
d)
Age of Amphibians
14.
Most fossiis form when organisms die and are buried in
a)
dirt
b)
ice
c)
faults
d)
sediment
15.
In the Cambrian Explosion,
a)
supercontinent broke apart
b)
asteroid collided w/ Earth
c)
great number of diff organisms evolved
d)
mammals spread into every environment on Earth
16.
Fossils provide evidence for all of the following EXCEPT for
a)
changes in Earth's surfacde
b)
how Earth originally formed
c)
how environments on Earth have changed over time
d)
how groups of organisms have changed over time
17.
On the Geologic Time Scale, eras are divided into
a)
epochs
b)
indexes
c)
periods
d)
relative dates
18.
The earliest forms of life appeared during
a)
Paleozoic Era
b)
Precambrian Time
c)
Mesozoic Era
d)
Cenozoic Era
19.
A petrified fossil forms when
a)
minerals seep into the empty space of a mold
b)
minerals replace all/part of organism
c)
an organism becomes trapped in amber
d)
weight of sediment squeezes everything away except carbon
20.
Magma that forces its way into rocks and hardens is called a (n)
a)
extrusion
b)
unconformity
c)
fault
d)
intrusion
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