WorksheetsUnit 3 Earth's History Vocabulary
Total questions: 13
Worksheet time: 7mins
Name
Class
Date
1.
Uniformitarianism
a)
A principle that states younger rocks lie above older rocks if the layer is undisturbed
b)
an ordered arrangement of rock layers that is based on the relative ages of the rocks and in which the oldest rocks are at the bottom
c)
A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time
d)
A principle that geologic processes that occurred in the past can be explained by current geological processes
2.
Fossil
a)
The death of every member of a species
b)
The history of life in the geological past as indicated by the traces or remains of living things
c)
The process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals
d)
The trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock
3.
Ice core
a)
A long cylinder of ice obtained from drilling through ice caps or ice sheets and used to study past climates
b)
an ordered arrangement of rock layers that is based on the relative ages of the rocks and in which the oldest rocks are at the bottom
c)
A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time
d)
A principle that geologic processes that occurred in the past can be explained by current geological processes
4.
Trace fossil
a)
The remains of an organism that lived long ago, most commonly preserved in sedimentary rock
b)
The death of every member of a species
c)
A fossilized structure, such as a footprint or a coprolite, that formed in sedimentary rock by animal activity on or within soft sediment.
d)
A principle that geologic processes that occurred in the past can be explained by current geological processes
5.
Climate
a)
A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time
b)
The weather conditions in an area over a short period of time
c)
A principle that geologic processes that occurred in the past can be explained by current geological processes
d)
The weather conditions in an area over a long period of time
6.
Absolute dating
a)
A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time
b)
A method of determining the absolute age of an object by comparing the relative percentages of a radioactive parent isotope and a stable daughter isotope.
c)
Any method of measuring the age of an event or object in years.
d)
The time required for half of a sample of radioactive isotope to break down by radioactive decay to form a daughter isotope
7.
Half-life
a)
A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time
b)
The history of life in the geological past as indicated by the traces or remains of living things
c)
A principle that geologic processes that occurred in the past can be explained by current geological processes
d)
The time required for half of a sample of radioactive isotope to break down by radioactive decay to form a daughter isotope
8.
Radioactive decay
a)
The process in which a radioactive isotope tends to break down into a stable isotope of the same or another element
b)
The time required for half of a sample of radioactive isotope to break down by radioactive decay to form a daughter isotope
c)
A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time
d)
The history of life in the geological past as indicated by the traces or remains of living things
9.
Radiometric dating
a)
A method of determining the absolute age of an object by comparing the relative percentages of a radioactive parent isotope and a stable daughter isotope.
b)
The time required for half of a sample of radioactive isotope to break down by radioactive decay to form a daughter isotope
c)
A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time
d)
The history of life in the geological past as indicated by the traces or remains of living things
10.
Superposition
a)
an ordered arrangement of rock layers that is based on the relative ages of the rocks and in which the oldest rocks are at the bottom
b)
A long cylinder of ice obtained from drilling through ice caps or ice sheets and used to study past climates
c)
A principle that states younger rocks lie above older rocks if the layer is undisturbed
d)
The history of life in the geological past as indicated by the traces or remains of living things
11.
Relative dating
a)
The time required for half of a sample of radioactive isotope to break down by radioactive decay to form a daughter isotope
b)
A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time
c)
Any method of determining whether an event or object or younger than other objects nor events
d)
A long cylinder of ice obtained from drilling through ice caps or ice sheets and used to study past climates
12.
Geological Column
a)
A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time
b)
A long cylinder of ice obtained from drilling through ice caps or ice sheets and used to study past climates
c)
an ordered arrangement of rock layers that is based on the relative ages of the rocks and in which the oldest rocks are at the bottom
d)
A principle that geologic processes that occurred in the past can be explained by current geological processes
13.
Unconformity
a)
A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time
b)
an ordered arrangement of rock layers that is based on the relative ages of the rocks and in which the oldest rocks are at the bottom
c)
A long cylinder of ice obtained from drilling through ice caps or ice sheets and used to study past climates
d)
A principle that geologic processes that occurred in the past can be explained by current geological processes
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