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Earth Science Unit Review
Earth Science Unit Review
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9th grade
Flashcards
49 cards
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Practice quiz
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Questions
49
Answers
1
transform boundary are what
cooling magma
two plates saidaing post each ather
two plates sliding past each other
when two plates meet
2
What are the layers of the Earth?
crust, mantle, inner core, outer core
inner core, outer core, mantle, crust
crust, mantle, outer core, inner core
crust, outer core, mantle, inner core
3
The theory of Continental drift was developed by
Alfred Wegener
Eduard Seuss
Bailey Willis
Alexander du Toit
4
The geologic principle that states that in undisturbed rock layers, the oldest layers are on the bottom.
Original Horizontality
Lateral Continuity
Superposition
Cross-cutting Relationships
5
If one geologic feature cuts across another feature, the feature that cuts across is older.
Cross Cutting Relationships
Original Horizontality
Superposition
Later Continuity
6
what is a tsunami
a long high wave caused by an earthquake
a small wave that hits the beach
some cool wave that would be rad to surf on
a shaking in the ground
7
Which of the labeled rock layers below is youngest?
B
A
C
D
8
What causes earth Mantle to flow...?
smooth jazz
Mantle
Convections currents
Earth
9
Time it takes for a radioactive element for half of the elements to decay
Radioactive Decay
Radioactive life
Half-life
Law of superposition
10
What type of Volcano is this?
Shield
Composite
Cinder Cone
Caldera
11
Earthquakes begin _____
Above the ground
On the Moon
Below the ground
In the mountains
12
Which of the following is NOT evidence for the Theory of Continental Drift?
Aligned Fossil Beds
Connected glacier beds and deposits
Matching Coastline
the same animals currently existing on different continents
13
Which type of boundary is responsible for sea floor spreading and rift valleys?
transform
convergent
fault lines
divergent
14
What can be a result of subduction?
mountains
none of the following
gold
volcanos
15
One way Scientists learned about the layers of the Earth is from:
subduction zones
Seismic (earthquake) waves
Space technology
The water cycle
16
Pangea can be proved by...
fossil evidence (animals & plants) & rock evidence
The size of Earth
The Mid-Atlantic ridge
The Oceans
17
Where do most earthquakes happen?
Mostly in the Pacific Ocean
In the middle of the plates
Only when elephants jump
Along the edges of the plates
18
Which statement correctly compares P waves and S waves?
P waves are faster; S waves move through liquids
P waves are faster; S waves do not move through liquid
P waves are slower; S waves move through liquids
P waves are slower; S waves do not move through liquid
19
An earthquake means a volcano will erupt.
True
False
20
Using relative dating order these from oldest to youngest?
J,V,R,T,M
T,R,M,V,J
J,V,M,R,T
V,M,J,R,T
21
how fast do landslides accur
seconds
minutes
days
trillons of years
22
Subduction
The process by which more dense oceanic crust sinks beneath a less dense cr
When molten material adds new oceanic crust to the ocean floor
When molten material adds new oceanic crust to the ocean floor
ust and back into the mantle at a convergent plate boundary; forms a deep-o
23
What is a shield volcano?
Built from nonexplosive eruptions & has gently sloping sides
Made from explosive eruptions and has a big base.
Made from explosive eruptions and has steep slopes.
Built from explosive eruptions & has gently sloping sides
24
How can faults make it difficult to do retaliative dating age in rocks?
By moving the rock up and down.
By making the older rocks on the top and younger rock on the bottom.
By shifting half the rock up and down to make harder to find.
25
Elements that release particles of energy and they beak down or decay over time.
Human decay
Sea Cave
Radioactive Decay
Atomic decay
26
Which layer is the hottest layer of the Earth...?
Outer core
Crust
Mantle
Inner core
27
What are Earthquakes
Violent shaking in the ground caused by plates moving
Panquakes and milk
landforms created by 2 converging continental plates.
Landforms that spew magma coming from the mantle.
28
When did the Earth form?
46 billion years ago
4.6 million years ago
46 million years ago
4.6 billion years ago
29
What is used to measure Earthquake magnitude?
P & S waves
Sound scales
A ruler
Richter Scale
30
Determine the Magnitude of this Earthquake:
7.3
3.7
5.4
5.0
31
What type of Volcano is this?
Caldera
Shield
Composite
Cinder Cone
32
The S-P interval _____ with increasing distance from an earthquake's epicenter.
increases
decreases
is variable
remains constant
33
Hot, light rock rises and cool, dense rock sinks, causing convection currents in the earth
True
False
34
Intrusions and faults are always older than the rock layers they cut through.
False
True
35
What causes a volcano to erupt?
underground pressure
an earthquake
rainstorm
lave
36
how do landslides happen
rocks
hippos
by earthquakes and heavy rain fall
loose soil
37
which of these places is the most likely to have a tsunami?
Hawaii, California, Washington, Oregon, Alaska.
Missouri, Texas, Montana,
Illinois, Kentucky, Georgia, Springfield
38
What travels faster a P wave or an S wave?
P
Q
S
N
39
What causes a volcano to erupt?
Low pressure above the submerged plate
High pressure above the mantle
High pressure above the submerged plate
Rocks freezing
40
Determine the epicenter of the Earthquake:
Sacramento
L.A.
San Francisco
Portland
41
Which of the following types of boundaries is responsible for the formation of the Rocky Mountains?
Fault lines
Convergent Boundaries
Transform Boundaries
Divergent Boundaries
42
what do divergent boundaries do?
they clash into eachother
the plates split apart from each other
earthquakes
stand still
43
what place most commonly has landslides
Africa
Asia
Ohio
Appalachian Mountains
44
Which type of natural disaster are we most likely to experience here in Colorado?
Earthquakes
Tsunamis
landslides
Volcanoes
45
The half life of Carbon-14 is 5,730 years. If you start with 20 g, how much will be left after 11, 460 years?
5 g
15 g
10 g
20 g
46
What is the thickest layer of the earth....?
Inner core
Crust
Outer core
Mantle
47
Convection currents in the ____ are responsible for the motion of the tectonic plates
Lithosphere
mesosphere
asthenosphere
crust
48
Relative dating is:
Looking at which layers are younger or older than known ones
Counting the rings in a tree stump
Using radioactive isotopes to determine the age of rocks
Identifying where magnetic elements have changed directions
49
Which Boundary creates oceans?
Convergent
Divergent
Seismic
Transform
