WorksheetsGeologic History and the History of Life
Total questions: 24
Worksheet time: 12mins
Name
Class
Date
1.
How much area does our solar system take up out of the universe?
a)
It takes up most of the universe
b)
It takes up a really tiny area
c)
It grows and shrinks so it varies
d)
It takes up a very large area
2.
According to the law of superposition, which layer is the youngest?
a)
A
b)
B
c)
C
3.
Which division on the geologic time scale is the shortest?
a)
epoch
b)
era
c)
eon
d)
period
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.
Most events on the geologic timeline happened:
a)
a long time ago, near the beginning
b)
more recently, near the modern time
c)
evenly spread out
d)
right in the center of the timeline
6.
Which of the following questions can be answered by studying these fossil layers?
a)
What did the fish eat?
b)
Which organisms lived before/after/or at the same time?
c)
Why did dinosaurs become extinct?
d)
Are reptiles the ancestors to birds or fish?
7.
When scientists use logic to determine the age of one fossil compared to another, they use this type of dating.
a)
Relative
b)
Carbon
c)
Absolute
8.
Scientists chose where units of geologic time began and ended based on major changes in life forms at certain times.
a)
true
b)
false
9.
Why is the fossil record incomplete?
a)
fossils get eroded away over time
b)
most organisms never became fossils
c)
scavengers and decomposers eat them too quickly
d)
all of the above
10.
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
11.
Which is the correct order of geologic time?
a)
Era >Eon >Period >Epoch
b)
Eon >Era >Period >Epoch
c)
Epoch >Period >Era >Eon
d)
Era >Eon > Epoch >Period
12.
Paleozoic, Mesozoic & Cenozoic are all
a)
Epochs
b)
Eras
c)
Periods
d)
Eons
13.
What was probably the first organism on Earth?
a)
Plants
b)
Alligators
c)
Bacteria
d)
Fish
14.
The ______________ era covers almost 90% of earth's history.
a)
Paleozoic
b)
Mesozoic
c)
Cenozoic
d)
Precambrian
15.
Which is the most recent era of time- the one that we are currently in?
a)
Mesozoic
b)
Paleozoic
c)
Cenozoic
d)
Precambrian
16.
a break in the Earths crust
a)
fault
b)
intrusion
c)
extrusion
d)
index fossil
17.
Which era is also known as the era of the dinosaurs?
a)
Precambrian
b)
Paleozoic
c)
Mesozoic
d)
Cenozoic
18.
How do we separate the geologic time scale into eras?
a)
So that they all last the same amount of time
b)
Every 1 billion years
c)
Based on major changes to life on Earth
d)
Based on when a new reptile appeared
19.
During which era was life very simple- bacteria, sponges, and jellyfish?
a)
Precambrian Time
b)
Cenozoic
c)
Mesozoic
d)
Paleozoic
20.
During which era did life move to land for the first time?
a)
Precambrian
b)
Paleozoic
c)
Mesozoic
d)
Cenozoic
21.
During which era did reptiles and amphibians evolve for the first time?
a)
Precambrian
b)
Paleozoic
c)
Mesozoic
d)
Cenozoic
22.
During which era did birds evolve for the first time?
a)
Precambrian
b)
Paleozoic
c)
Mesozoic
d)
Cenozoic
23.
When did mammals become the most dominant organisms?
a)
Precambrian
b)
Paleozoic
c)
Mesozoic
d)
Cenozoic
24.
During which era did flowering plants become common?
a)
Precambrian
b)
Cenozoic
c)
Mesozoic
d)
Paleozoic
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