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WorksheetsES08-3 GEOLOGICAL TIME SCALE
Total questions: 9
Worksheet time: 18mins
Name
Class
Date
1.
Which fossil is a replica of the original shape of the organism?
a)
cast
b)
mold
c)
trace
d)
preserved remains
2.
Relative dating of rock layers tells us that the deeper we dig, _______.
a)
the younger the rocks get
b)
the smellier the rocks get
c)
the harder the rocks get
d)
the older the rocks get
3.
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
4.
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
5.
A bug stuck in amber is an example of what type of fossil?
a)
cast
b)
mold
c)
trace
d)
preserved remains
6.
What type of rock do fossils form in?
a)
Igneous
b)
Sedimentary
c)
Metamorphic
d)
Classic
7.
The fossil record shows that life on Earth has changed over time. For example, paleontologists have found that older rocks contain fossils of
a)
organisms that are more complex than those alive today
b)
both simple and complex organisms
c)
only organisms that are alive today
d)
organisms that are simpler than those alive today
8.
What do most scientists think caused the mass extinction of dinosaurs and other organisms at the end of the Cretaceous period?
a)
an object from space struck Earth
b)
volcanic eruptions covered large areas with lava
c)
an ice age covered most of Earth with ice
d)
The dinosaurs ate too many other organisms and then starved
9.
The Paleozoic, Mesozoic, and Cenozoic are divisions in the geologic time scale called ____
a)
centuries
b)
layers
c)
periods
d)
eras
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