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WorksheetsFossils and Geologic Time
Total questions: 25
Worksheet time: 25mins
a model scientists use to describe the timing of events and the relationships between those events in earth’s history.
geologic time scale
era
period
epoch
The Geologic Time Scale is a record of what?
old geologists
sweet geology music
the known history of rocks and fossils
a list of every living thing ever
when minerals replace the remains and they become rock; things like wood.
Petrified
Mold
Cast
Index
Trace Fossil
when the shell remains and the contents dissolve
Petrified
Mold
Cast
Index
Trace Fossil
Which layer contains the oldest index fossils?
Layer 1
Layer 2
Layer 3
Layer 4
What era was the age of fish?
Precambrian
Palezoic
Mesozoic
Cenozoic
A good index fossil comes from an organism that existed
For a short time period but was widespread
For a long time period and was widespread
For a short time period and in a small geographic area
For a long time period and in a small geographic area
Which statement is true ?
The oldest layers of rock and soil are closet to the surface of the earth
The youngest layers of rock and soil are farther away from the surface of the earth
Carbon-14 dating is an example of relative dating an the law of superposition is an example of absolute dating
Absolute geologic dating an relative geologic dating are two methods used by scientists to determine age of geologic evidence
An index fossil was found in Africa. The same type of index fossil was found in Asia. What does this tell us?
This tells us nothing important.
The rock layer in Africa and Asia were formed during the same time period.
The fossils are not related.
The fossils can be found all over the world.
The division of Earth's geologic history into units of time called eons, eras, periods, and epochs is based on
absolute dating techniques
fossil evidence
climatic changes
seismic data
Several different fossils were found in rock layers in a geologic column. Above these rock layers, the fossils were almost nonexistent. Which most likely explains these observations?
non conformity occurred.
All the organisms migrated.
A period of mass extinction occurred.
Fossils are only found in
Sedimentary rocks
Foliated Metamorphic rocks
Igneous Rocks
Nonfoliated Metamorphic rocks
when the mold becomes filled with minerals that are not a part of the original organism.
Petrified
Mold
Cast
Index
Trace Fossil
a fossil found in a narrow time range but widely distributed around the earth; used to date rock layers.
Petrified
Mold
Cast
Index
Trace Fossil
fossilized mark that is formed in soft sediment by the movement or actions of an animal.
Petrified
Mold
Cast
Index
Trace Fossil
According to paleontologists, how old is the Earth?
3.5 Billion Years Old
543 Million Years Old
57 Million Years Old
4.6 Billion Years Old
What type of rock do fossils form in?
Igneous
Sedimentary
Metamorphic
Classic
Which of the following statements about the fossil record is true?
all organisms become fossils
organisms having soft body parts make up most of the fossils
all organisms that have shells become fossils
the fossil record is incomplete
A bug stuck in amber is an example of what type of fossil?
cast
mold
trace
preserved remains
How do most fossils form?
A living thing dies and is buried under sediment
The sediment is compressed and compacted
They are formed in sedimentary rock
All of these answers
What is a fossil that is useful for dating and correlating the strata in which it is found?
a petrified fossil
a trace fossil
a cast fossil
an index fossil
What is the primary purpose of the geologic time scale in social studies?
To track human history
To organize Earth's history into manageable sections
To predict future geological events
To measure the age of the universe
Which type of fossil is most useful for determining the relative age of rock layers?
Petrified fossil
Index fossil
Trace fossil
Mold fossil
What does the presence of similar fossils in different continents suggest in terms of geologic time?
The continents were once connected
The fossils are not related
The organisms evolved independently
The fossils are from different time periods
Which era is known for the dominance of dinosaurs?
Cenozoic
Mesozoic
Paleozoic
Precambrian
