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2019: 7th Grade - Chapter 14 A Trip Through Geologic Time Flashcards | StudBud
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2019: 7th Grade - Chapter 14 A Trip Through Geologic Time
2019: 7th Grade - Chapter 14 A Trip Through Geologic Time
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1
What is a record of the geologic events and the evolution of life forms known as?
history of Earth
fossil record
evolution
geologic time scale
2
Which rock layer is the youngest: Location 1, layer A or Location 2, layer C?
Location 1, layer A
Location C, layer C
3
In what type of fossil will minerals replace all or part of an organism?
petrified fossil
mold
cast
preserved remains
4
In what type of fossil will an extremely thin coating of carbon be found on a rock?
trace fossil
carbon film
preserved remains
mold
5
What type of land creatures did NOT appear during the Quaternary Period?
cats
insects
dogs
humans
6
What became plentiful during the Devonian Period?
fish
dinosaurs
reptiles
humans
7
What type of rock do we find iridium in?
meteoroids
asteroid
moon rocks
fossils
8
What parts of an organism will we see in a fossil?
only the hard parts
mainly the footprints
only the soft parts
all parts will be found in a fossil
9
Which time period is the longest?
epoch
era
century
period
10
What is an intrusion?
sedimentary rock that has been weathered on Earth's surface
sedimentary rock that has been eroded beneath Earth's surface
igneous rock layer formed when magma hardens beneath Earth's surface
igneous rock layer formed when lava flows onto Earth's surface and hardens
11
What is the longest unit of time?
period
epoch
era
age
12
What type of fossil provides evidence of the activities of an organism?
cast
carbon film
mold
trace fossil
13
Which group's extinction allowed mammals to thrive on Earth?
large fish
dinosaurs
reptiles
amphibians
14
What are the preserved remains or traces of living things?
rock
fossil
geologic time scale
crystal
15
What body feature did organisms begin to develop at the beginning of the Cambrian period?
fur
hard parts like shells and outer skeletons
gills
fins
16
Which of the following is not an example of vertebrate?
jellyfish
giraffe
bird
elephant
17
What record of information shows how different groups of organisms have changed over time?
historical record
historical record
fossil record
history of Earth
18
What is an extrusion?
sedimentary rock that has been eroded beneath Earth's surface
igneous rock layer formed when lava flows onto Earth's surface and hardens
sedimentary rock that has been weathered on Earth's surface
igneous rock layer formed when magma hardens beneath Earth's surface
19
Which time period accounts for most of Earth's history?
Precambrian
Paleozoic
Mesozoic
Cenozoic
20
What is the correct order from longest to shortest time period?
era, period, epoch
epoch, period, era
period, era, epoch
period, epoch, era
21
What time period did modern humans arrive in?
Devonian Period
Mesozoic Era
Quaternary Period
Precambrian Time
22
Why did the dinosaurs disappear?
asteroid hit the Earth
another larger organism ate them
they became ill with disease
they moved away
23
When looking at a subsection of rocks, how are rocks usually found?
Younger rocks are deeper in Earth, older rocks near top.
Older rocks are deeper in Earth, younger rocks near top.
Metamorphic rocks are deeper in Earth, sedimentary rockers are near top.
There is no relationship to location and age of rocks.
24
Which of the following is NOT a reason why mass extinction occurred at end of Permian Period?
too much carbon dioxide in oceans
volcanoes erupted
abundance of new life
asteroid
25
If an organism is extinct, what does that mean?
It no longer exists and never again will exist on Earth.
There are very few of these organisms remaining.
It is very unique and unlike any other organisms currently known.
It no longer exists but could possible return to Earth.
26
Which of the following is NOT an example of an invertebrate?
jellyfish
monkey
worm
sponge
27
What type of fossil preserves the entire organism?
carbon film
cast
mold
preserved remains
28
Why is the trilobite fossil only in Layer A (and not other layers) at all four locations?
It could have become extinct.
Both of the given answer choices.
It could have moved to a different location.
Neither of the given answer choices.
29
Where did the organisms at the beginning of the Cambrian period live first?
in the air
in the sea
on land
in the trees
30
What is the correct order of geologic time periods from longest to shortest?
period, era, epoch
era, epoch, period
era, period, epoch
epoch, period, era
31
Assume that rock layer C is missing. What is a possible reason why it is missing?
Rocks in C were crushed by layers A and B.
Rocks in C were pushed into mantle and melted.
Rocks in C are very thin.
Rocks in C eroded before layers B and A formed.
32
Which of the following pieces of information are NOT given by the fossil record?
history of past environments and climates
how organisms have changed over time
history of life
why the dinosaurs disappeared
33
What type of fossil is a solid copy of the shape of the organism?
trace fossil
cast
mold
preserved remains
34
Which era has the least fossils?
Paleozoic
Precambrian
Cenozoic
Mesozoic
35
How do geologists determine when one time period begins and ends?
they look at changes in life forms in the fossil record
they divided time periods into equal million year periods
they look for when dinosaurs appeared and disappeared
they divided time periods into thousand year periods
36
What is an index fossil?
fossil of an organism's activities
fossil of widely distributed organisms that lived during a short period
fossils that were the first fossil from each time period
fossil of only the top 50 known organisms
37
What is the change in living things over time known as?
evolution
origination
preserved remains
extinction
38
What do you think happened to the missing rock layers in Location 2-4?
The rock layers combined
The organisms relocated
One of the younger rock layers eroded
One of the older rock layers eroded
39
What type of fossil is a hollow area in the shape of an organism?
mold
preserved remains
carbon film
cast
40
What was the Mesozoic Era known as?
Age of the Amphibians
Age of the Reptiles
Age of the Humans
Age of the Fishes
41
What is the correct order of eras from the most recent to the oldest?
Cenozoic, Mesozoic, Paleozoic
Cenozoic, Paleozoic, Mesozoic
Paleozoic, Mesozoic, Cenozoic
Paleozoic, Cenozoic, Mesozoic
