WorksheetsGeneration Genius - Rock Layers & Geologic Time
Total questions: 15
Worksheet time: 10mins
Name
Class
Date
1.
When sediment is moved around by wind or water it is called ______________.
a)
sedimentation
b)
deposition
c)
transportation
d)
erosion
2.
_______________ are rocks that contain evidence of past life on Earth.
a)
Fossils
b)
Igneous rocks
c)
Sedimentary layers
d)
Minerals
3.
The breaking down of rocks into smaller pieces is called ________________.
a)
erosion
b)
sedimentation
c)
compaction
d)
weathering
4.
_________________ are scientists that study the composition of Earth, including rock layers at the surface.
a)
Astronomers
b)
Meteorologists
c)
Biologists
d)
Geologists
5.
Rock that is made from sediment that has been pressed together is called ________________ rock.
a)
metamorphic
b)
igneous
c)
volcanic
d)
sedimentary
6.
The geologic time scale tracks Earth’s estimated ____________________ year history.
a)
4600
b)
46,000
c)
46 million
d)
4.6 billion
7.
Paleontologists study________________.
a)
rocks and minerals
b)
animal behavior
c)
climate change
d)
fossils and the history of life on Earth
8.
The rock layer closest to the surface is __________ in age than the layers beneath them.
a)
younger
b)
older
c)
the same
9.
Explain how sedimentary rock is formed.
a)
Sedimentary rock is formed from volcanic activity.
b)
Sedimentary rock is created by the cooling of magma.
c)
Sedimentary rock forms exclusively from metamorphic processes.
d)
Sedimentary rock is formed from the accumulation, compaction, and cementation of sediments.
10.
Explain how sediment is deposited to form Earths layers.
a)
Sediment is deposited in layers through erosion, transportation, and sedimentation processes.
b)
Sediment layers are created by underwater earthquakes.
c)
Sediment is formed solely from plant decay.
d)
Sediment is only deposited during volcanic eruptions.
11.
Because the time span of Earth's past is so great, geologists use the (a) to show Earth's history.
Choose from the below words
geologic time scale
graphical time span
geological time frame
geographical time set
gigantic fossil index
geologic fossil index
12.
Geologic Time is broken down into smaller parts called eons, ____, periods, and epochs.
a)
eras
b)
decades
c)
lightyears
d)
points
13.
(a) is the type of dating that allows scientists to know the exact age of a fossil or rock.
Choose from the below words
Absolute Dating
Relative Dating
14.
What can fossils tell us about the Earth's history?
a)
The age of the Earth
b)
The color of ancient animals
c)
The types of organisms that existed in the past
d)
The temperature of the Earth millions of years ago
15.
What is an index fossil?
a)
An index fossil is a fossil that represents a single species that lived for a long time.
b)
An index fossil is a fossil that is millions of years old and cannot be used for dating.
c)
An index fossil is a fossil used to define and identify a specific geological time period.
d)
An index fossil is a fossil that is only found in one specific location.
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