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Geologic Time REVIEW Flashcards | StudBud
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Geologic Time REVIEW
Geologic Time REVIEW
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Earth Science #earthscience
Flashcards
44 cards
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Practice quiz
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Questions
44
Answers
1
Igneous Rocks with large mineral crystals form
slowly, underground
quickly, above ground
2
Earth is...
3 billion years old
4.5 billion years old
1 million years old
2.5 billion years old
3
Cooling of Magma
Foliation
Crystallization
Metamorphism
Deposition
4
Faults have to be YOUNGER or OLDER than the rocks they cut through?
Older
Younger
5
The red in this image is...
a layer of sedment
an intrusion of magma
contact metamorphism
a fossil
6
Sedimentary Rocks usually form when sediment is deposited...
anywhere there is sediment
in the bottom of a body of water
in the magma chamber of a volcano
7
What's this?
igneous intrusion
snake fossils
folding and uplift
8
In the beginning, Earth was....
Mostly moutainous
Covered in hematite
All molten rock
One giant ocean
9
Humans on Earth...
1 million years
Since the beginning
Only VERY recent
About half way through Earth's history
10
Which Era are we in today?
Paleozoic
Mesozoic
Cenozoic
11
What's this?
Squiggly Line Drawing
Geologic Cross Section
Big Octopus Fossil
12
Eons are divided into...
Eras
Epochs
Periods
Mini Eons
13
A missing part of the rock record... a geologic mystery...
Sorcerer's Stone
Unconformity
Metamorphic Rock
14
Igneous Rock that forms quickly above the surface of the Earth
Extrusive
Intrusive
15
Rock type that contains fossils
Metamorphic
Intrusive Igneous
Extrusive Igneous
Sedimentary
16
Correlate means...
divide up the data
find the connection
jump up and down
create a product
17
Molten rock cools slowly
Sediment Layers
Large crystals
Foliation
Small crystals
18
Which Eon is the longest?
Precambrian
Metamorphic
Phanerozoic
19
What does this image show?
How Geologists figured out why some organisms died
How Geologists figured out what organisms lived when
20
An INDEX FOSSIL should be one that..
was widespread but lived only briefly
was only around when Dinosaurs existed
is still living today
lived only on one part of Earth
21
Hematite is important because...
tells when oxygen levels rose in atmosphere
contains lots of fossils
tells when there was life on Mars
is used to make tools
22
The pebbles in this conglomerate are OLDER or YOUNGER than the whole rock?
YOUNGER
OLDER
23
Determining which rock or fossil came first, second or third...
Absolute Dating
Relative Dating
Magic Wand
Indexing Method
24
Could you figure out which geologic event happened first?
Yasssssss
Meh
IDK
25
Formed from already existing rocks put under heat and pressure
Sedimentary Rocks
Igneous Rocks
Metamorphic Rocks
26
All the processes we observe happening on Earth today (like erosion) also happened in the past
Law of Superposition
Law of Metamorphism
Law of Uniformitarianism
27
Layers in Metamorphic Rock
Fossils
Foliation
Crystallization
Deposition
28
Radioactive decay is when...
magma is cooled
layers are dated
elements turn into other elements
fossils are buried
29
Which layer is the oldest?
B
D
C
A
30
Is the inner most layer of the Earth
Core
Crust
Mantle
31
Earth's landscape has always looked exactly like what we see now.
False
True
32
What is this?
Aquifer
Redbed
Metamorphic Rock
Intrusive Igneous Rock
33
Molten rock cools quickly
Minerals are destryoed
Fossil compaction
Large crystals
Small or no crystals
34
The black whiskers show...
a fossil
contact metamorphism
a layer of sedment
an intrusion of magma
35
The LONGEST unit of geologic time..
Period
Era
Epoch
Eon
36
Density is...
How much something weighs
How large something is
Amount of mass in a certain volume
37
The layers of rock on the bottom are the oldest.
Law of Superposition
Law of Index Fossils
Law of Uniformitarianism
38
The processes that shape Earth today are mostly the same as the past.
True
False
39
Hematite is..
Element: iron
Mineral: oxygen + iron
Mineral: sulfer + oxygen
40
Strata is a fancy word for ...
layers of sedimentary rock
foliation in metamorphic rocks
a method of dating rocks
special kinds of fossils
41
How Earth Formed?
Space minerals cluster together
Spacemen made it
Piece of Mars broke off
42
Eras are divided into..
Epochs
Eons
Periods
Fossils
43
What is this?
Metamorphic Rock Chart
Crystallization Comparison
Fossil Explanation
Geologic TIme Scale
44
Using Radiometric Dating, we know how old this rock type is....
Sedimentary Rock
Fossil Rock
Igneous Rock
Metamorphic Rock
