WorksheetsChp. 15 - Geologic Time Scale
Total questions: 20
Worksheet time: 34mins
Preserved remains of plants and animals from the remote past are called?
Sedimentary rocks
Radioactive dating
Decayed organisms
Fossils
The end of an era, and the end of life for groups of organisms, is called?
Death
Mass extinction
Transition
Turning point
Which is the youngest rock layer?
Siltstone
Conglomerate
Mudstone
Limestone
Which rock layer is oldest from Site 1?
G
B
A
E
Which of the fossils is the oldest?
Dinosaur
Bird
Shell
Ammonite
When classifying time using the Geologic Time Scale which unit is the largest unit of time?
Period
Eon
Epoch
Era
The Mesozoic Era is found in which Eon?
Phanerozoic
Precambrian
What Epoch of the Geological Time scale are we currently in?
Holocene
Paleocene
Hadean
Jurassic
Put the following units of geological time in order from largest to smallest unit of time.
Epoch, Eon, Era, Period
Epoch, Period, Era, Eon
Eon, Era, Period, Epoch
Period, Eon, Period, Era
Which fossil is the youngest
1
2
3
4
Fossils provide evidence of __________.
how life and the environment has remained stable over time
how the climate and weather has remained stable over time
how life and the environmental conditions have changed over time
___occurs when a physical barrier separates a population from the rest of its species.
Superposition
Uniformitarianism
Geographic isolation
Land bridges
A ___ is a subdivision of an eon.
era
epoch
eon
period
The smallest unit of geological time is called
a period.
an epoch.
an era.
an eon.
An era is subdivided into smaller units of time called
eons.
epochs.
periods.
another era.
