WorksheetsAge of Rock Geologic Time
Total questions: 21
Worksheet time: 24mins
Name
Class
Date
1.
Dating rocks by comparing rock layers is
a)
absolute age
b)
relative age
c)
radioactive dating
d)
layer cake
2.
Organisms that lived for a short period of time and where found everywhere are
a)
cast fossils
b)
mold fossils
c)
index fossils
d)
old
3.
According to the law of superposition the youngest rocks are found
a)
on top of rock layers
b)
on bottom of rock layers
c)
in the middle of rock layers
4.
Over time the kinds of life on Earth became more complex (single-celled organisms to dinosaurs to mammals). If you found complex organism fossils in rocks where would the be found?
a)
in the bottom layers
b)
in the middle layers
c)
in the top layers
5.
Radioactive dating uses what to determine the age of rock?
a)
radios
b)
calendars
c)
isotopes (unstable atoms)
d)
rock layers
6.
An original sample of Carbon is 60 grams. How much would be left after 3 half-lives?
a)
30 grams
b)
7.5 grams
c)
15 grams
d)
0 grams
7.
There are ___ Eras in Earth's geologic time scale.
a)
1
b)
2
c)
3
d)
4
8.
90% of Earth's history is the
a)
Precambrian Era
b)
Paleozoic Era
c)
Mesozoic Era
d)
Cenozoic Era
9.
Appearing during the Paleozoic Era, animals without backbones are know as?
a)
vertebrates
b)
backless
c)
invertebrates
d)
cool
10.
Which organism appear during the Mesozoic Era?
a)
Fish
b)
single-celled organisms
c)
plants
d)
dinosaurs
11.
The Age of the Mammals is the
a)
Precambrian Era
b)
Paleozoic Era
c)
Mesozoic Era
d)
Cenozoic Era
12.
Which of the following would not be preserved to form a fossil?
a)
shell
b)
tooth
c)
stomach
d)
bone
13.
4.6 Billion years is the
a)
age of Trailridge.
b)
age of Mars.
c)
age of Mr. Sigg.
d)
age of the Earth.
14.
What evidence is not used to date the age of the Earth?
a)
rock layers
b)
fossils
c)
books
d)
radioactive decay
15.
How many mass extinctions have happened on Earth?
a)
2
b)
3
c)
4
d)
5
16.
A meteorite hit Earth and caused a mass extinction of dinosaurs. Where can dinosaur fossils be found?
a)
under the meteorite impact rock layer
b)
above the meteorite impact rock layer
17.
How many rock groups are found in the Grand Canyon?
a)
3
b)
4
c)
15
d)
10
18.
Stromatilites are index fossils that date to which era?
a)
Precambrian
b)
Paleozoic
c)
Mesozoic
d)
Cenozoic
19.
The Grand Canyon dates to which two eras?
a)
Precambrian and Paleozoic
b)
Paleozoic and Mesozoic
c)
Mesozoic and Cenozoic
20.
In order to do well on the science test, I must all of the following except?
a)
review my class notes
b)
answer some practice questions from the textbook
c)
try playing this quizizz at home tonight
d)
forget my notes at school
21.
What should I study for the test?
a)
Notebook Notes
b)
Geologic Time Scale Notes
c)
Work on Google Classrom
d)
All of it
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