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EARTH HISTORY

Total questions: 30

Worksheet time: 30mins

Name
Class
Date
1.

types of rock that are formed by the deposition of material at the Earth's surface and within bodies of water.

a)

sedimentary rock

b)

index fossil

c)

metamorphic rock

d)

cast fossil

2.

states that younger rock is found above older rock when comparing undisturbed sedimentary rock layers

a)

law of superposition

b)

trace fossil

c)

matter can't be created or destroyed

d)

atoms

3.

method of determining the age based on measuring radioactive elements

a)

radioactive dating

b)

relative dating

c)

teenage dating

d)

no dating

4.

determination of the age of a rock based on the surrounding evidence

a)

relative dating

b)

radioactive dating

c)

done dating

d)

molecules

5.

a common fossil found in many areas from a specific time; used to help identify the age of rock layers and for relative dating

a)

index fossil

b)

fault

c)

sedimentary rock

d)

fraggle rock

6.

unconformities

a)

gaps in the rock sequence

b)

not this one

c)

don't choose this one

d)

these are not trick answers, I seriously gave you a free one

7.
Which is the most recent era of time- the one that we are currently in?
a)
Mesozoic 
b)
Paleozoic 
c)
Cenozoic 
d)
Precambrian 
8.
Which era is known as the "age of reptiles"
a)
Paleozoic Era
b)
Cenozoic Era
c)
Mesozoic Era
d)
Precambrian Era
9.
The Era when humans first appeared was...
a)
Cenozoic
b)
Mesozoic
c)
Paleozoic
d)
Precambrian
10.
The time span that lasted the longest was the...
a)
Precambrian
b)
Paleozoic
c)
Mesozoic
d)
Cenozoic
11.
Which era is known as the "age of mammals"
a)
Cenozoic Era
b)
Precambrian Era
c)
Paleozoic Era
d)
Mesozoic Era
12.
The single land mass that existed about 245 million years ago is named what?
a)
Fossil
b)
Pangea
c)
Bob
d)
Tectonic plates
13.
During which era did the earliest dinosaurs appear?
a)
Cenozoic
b)
Paleozoic
c)
Mesozoic
d)
Precambrian
14.
During which era did the ice ages occur?
a)
Precambrian 
b)
Paleozoic
c)
Mesozoic
d)
Cenozoic
15.
Paleozoic, Mesozoic & Cenozoic are all
a)
Epochs
b)
Eras
c)
Periods
d)
Eons
16.
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
17.
Name the 4 time frames in order from oldest to youngest.
a)
Precambrian Time, Paleozoic Era, Mesozoic Era, Cenozoic Era
b)
Mesozoic Era, Precambrian time, Cenozoic Era, Paleozoic Era
c)
Paleozoic Era, Mesozoic Era, Precambrian Time, Cenozoic
18.
Which era is known as the "age of invertebrates"
a)
Precambrian
b)
Mesozoic
c)
Cenosozic
d)
Paleozoic
19.
The Paleozoic era occurred during which time frame?
a)
4.6 bya - 540 mya
b)
540 mya - 245 mya
c)
245 mya - 66 mya
d)
66 mya - current
20.
Which process would be most effective in determining the age of fossils embedded in rock?
a)
relative dating
b)
absolute dating
c)
use of index fossils
d)
use of core sampling
21.
Which characteristic of carbon-14 dating helps scientists determine the approximate time a species became extinct?
a)
Carbon-14 is not present in more recent fossils
b)
Carbon-14 increases at a constant rate over time
c)
Carbon-14 decreases at a constant rate over time
d)
Carbon-14 can only be found in fossils of a certain period
22.
The index fossil of a type of trilobite is discovered in layer A of a set of rock layers found at three different sites of a field investigation. Which conclusion can be made about the rocks in layer A at all three sites?
a)
The rocks are all different ages
b)
The rocks are all about the same age
c)
The rocks were formed from melting magma
d)
The rocks were formed during a catastrophic event
23.
Which statement is true?
a)
The oldest layers of rock and soil are closest to the surface of the earth
b)
The youngest layers of rock and soil are farther away from the surface of the earth.
c)
Carbon-14 dating is an example of relative dating, and the law of superposition is an example of absolute dating.
d)
Absolute geologic dating and relative geologic dating are two methods used by scientists to determine the age of geologic evidence.
24.
Which theory does evidence found in sedimentary rocks best support?
a)
Most organisms from Earth's history still exist.
b)
Organisms have not changed significantly over time.
c)
All organisms from Earth's history have become extinct.
d)
Organisms have evolved from simple to complex forms.
25.
Which statement best describes the Law of Superposition?
a)
Each sedimentary layer of rock represents 1,000 years of Earth's age, much like the rings of a tree.
b)
In undisturbed layers of sedimentary rocks, the upper rock layers are older than the lower rock layers.
c)
In undisturbed layers of sedimentary rock, the lowest layers contain the older rocks.
d)
Rocks that form near volcanoes are older than surrounding rock.
26.
All are types of fossils EXCEPT
a)
Mineral Replacement
b)
Bone neutralization
c)
Carbon Film
d)
Cast and Mold
27.
The bottom layer of rock is
a)
the oldest
b)
has fossils
28.

How do petrified fossils form?

a)

An organism is trapped in ice that remains frozen for thousands of years.

b)

Sediment fills an organism's footprints and turns to rock.

c)

An organism's remains are preserved without being changed.

d)

Minerals soak into and completely replace an organism's remains.

29.

According to the law of superposition, younger layers of rock are generally found above older layers of rock. However, there are locations where older layers are found above younger layers. Which of the following can cause this to happen?

a)

Rock layers can overturn as they are folded.

b)

During uplift, rock layers can tilt enough to overturn.

c)

Older rock layers can slide above younger rock layers along faults.

d)

all of these

30.
Which statement can be best supported by the fossil record?
a)
Most of the organisms on Earth have not changed over time.
b)
Most life forms that existed on Earth are now extinct.
c)
Humans and dinosaurs have existed on Earth at the same time.
d)
Human have lived on Earth for most of geologic history.

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