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WorksheetsUnit 7: Geologic Time PreTest
Total questions: 20
Worksheet time: 10mins
The concept that the oldest rock layers are at the bottom of a sequence with younger rock layers deposited on top of them.
relative dating
superposition
rock strata
core sample
It is used to figure out a sequence of geological events from the evidence left behind in the rock.
relative dating
superposition
rock strata
core sample
The remains or physical evidence of an organism preserved by geologic formation.
rock strata
paleontology
fossil
geology
The study of the changes in Earth's life over space and time through the study of rock units and the fossils contained within them.
lithology
geology
mineralogist
paleontology
A mutation is
the process by which species adapt to environmental changes over a very long time
to receive genes from a parent
the process by which the distribution of traits in a population changes over many generations
a random change to a gene that sometimes results in a new trait
Determines the “relative” order of past events but not the absolute age.
Absolute age
Relative age
Real age
New age
The end of life for a group of organisms, usually a species, is called a(n) ________________.
Extinction
Retirement
Endangerment
Catastrophe
In which of the following eras did humans first appear in the fossil record?
Precambrian
Paleozoic
Mesozoic
Cenozoic
Which layer is the youngest?
Z
D
W
A
Which Layer is the oldest?
A
X
G
Z
Which came first?
Trilobites are one of the dominant species on Earth
Amphibians leave the water
The age of reptiles
Early humans arise on Earth
What happened during the "Cambrian explosion"
An asteroid caused a mass extinction
Mammals began to dominate the Earth
This is when there was a major increase in the number and diversity of invertebrate species in a short period of time.
What are the four eras in order from oldest to youngest?
Precambrian, Paleozoic, Mesozoic, Cenozoic
Precambrian, Mesozoic, Paleozoic, Cenozoic
Cenozoic, Mesozoic, Paleozoic, Precambrian
Mesozoic, Precambrian, Cenozoic, Paleozoic
Mammals were dominant in which era?
Paleozoic
Cenozoic
Mesozoic
Precambrian
In what era did the first land plants appear?
Silurian
Mesozoic
Paleozoic
Which letter matches with the OLDEST layer of rock?
W
X
Y
Z
