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L5&6 Study Stuff

Total questions: 123

Worksheet time: 2hrs 20mins

Name
Class
Date
1.

What does heat do when convection currents are moving?

a)

Sinks

b)

Rises

c)

Stays in place

2.

Colder, more dense magma near the crust...

a)

rises.

b)

sinks.

3.

Hotter, less dense magma near the core...

a)

rises.

b)

sinks.

4.

The plates of the crust move because...

a)

volcanoes erupt violently.

b)

of the weight of the oceans.

c)

of convection currents in the mantle.

d)

of the moon's gravity.

5.
When molten  material is heated in the mantle the molecules
a)
expand (spread out)
b)
condense (shrink together) 
c)
stay the same
6.

Convection currents occur due to...

a)

rotation of earth

b)

differences in temperature and density

c)

electrons moving

d)

gravitational pull

7.

Which of the following is one reason Earth's tectonic plates to move?

a)

energy from the Sun

b)

magnetic Pole Reversal

c)

convection currents in the mantle

d)

faults in Mountain Ranges

8.

Convection cycles move in the mantle. How does this affect the crust?

a)

crust has no motion

b)

crust moves in random directions

c)

crust moves in same direction convection cycle moves

9.

Name the type of heat transfer shown in the picture.

a)

convection

b)

conduction

c)

radiation

10.

Earth's ​ (a)   is always changing because of the ​ (b)   of magma in the ​ (c)   ​

Choose from the below words
crust
movement
mantle
core
stillness
lava
11.

Which layer of the Earth is the LEAST DENSE?

a)

crust

b)

mantle

c)

outer core

d)

inner core

12.

Which of the following best describes this diagram?

a)

The oceanic crust is subducting under the continental crust because it is denser

b)

The trench is froming a lake of water along the edge of the lithosphere.

c)

Mountains are forming because 2 contiential crust are converging

d)

The ocean water will put out the fire caused by the volcano.

13.

The Ring of Fire is located around the Pacific Plate. How did this land feature form?

a)

dinosaurs moved the plates to this location.

b)

mountains formed along the ring because of uplifting.

c)

movement along the edges caused earthquakes and volcanoes.

d)

ice formed during the ice age and left rocks behind in this pattern,

14.

Which of the following is the correct difference between the oceaninc and the continetal crust?

a)

The ocean crust is thicker and less dense

b)

The continential crust it thicker and more dense

c)

The oceanic crust is thiner but is more dense.

d)

The contiential crust is thinner and less dense.

15.

Where do convection currents occur? Circle the correct layer.

16.

What is Plate Tectonics?

a)

movement of the Earth in space

b)

movement of the oceans against Earth's land

c)

movement of the Earth around the sun

d)

movement of the pieces of Earth's crust

17.

Why do Earth's plates move?

a)

because of tornadoes and hurricanes

b)

because of Earth spinning on its axis

c)

because of Earth orbiting the sun

d)

because of molten rock heating and cooling within the mantle

18.

how did Pangaea break apart

a)

dynamite

b)

cave men

c)

Minecraft

d)

continental drift theory

19.
What does the theory of continental drift state?
a)
The continents were once joined in a super-continent and have moved over time
b)
Continents are stationary and do not move
c)
The Earth is broken into lithospheric plates that move due to convection currents
d)
none of the above
20.
As you travel from the inner core to the crust, how would temperature, pressure and density of the material change?
a)
The would all increase
b)
The would all decrease.
c)
Nothing, the layers are made of the same material throughout
d)
Temperature would decrease, but pressure and density would increase
21.
What is represented by the picture? 
a)
Sea-floor spreading
b)
Pangea
c)
How the continents are arranged today
d)
Volcanoes
22.
The circular arrows inside the Earth's Mantle represent what type of motion, that drives ALL plate movement?  
a)
Convergent Boundary
b)
Ocean Currents
c)
Convection Currents
d)
Transform Boundary
23.
What forms when an oceanic plate and a continental plate converge?
a)
Trench
b)
Ocean
c)
Continent
d)
Mountains
24.

Why did other scientists did no believe in Wegener’s theory?

a)

He could not explain how the continents moved

b)

He didn’t have evidence

c)

His data was wrong

d)

He didn’t use the right technology to gather data

25.
How does fossil evidence support Wegener's hypothesis of continental drift?
a)
Similar fossils are found along continental margins that appear to join together.
b)
Fossils are found in areas where the present-day climate could not have supported the organisms that made the fossils.
c)
Similar fossils of giant, land-dwelling dinosaurs are found on continents separated by oceans.
d)
all of the above
26.
What are Mid-Ocean Ridges?
a)
A chain of underwater waterfalls 
b)
A chain of underwater volcanos
c)
A chain of underwater mountains
d)
A chain of underwater rocks
27.
True or False : Sea-floor Spreading adds new material to the ocean floor?
a)
True
b)
False
28.
What happens when Subduction occurs?
a)
Parts of the crust fall into the mantle
b)
Parts of the crust fall into the core
c)
Parts of the crust fall into space
d)
None of the Above
29.

A large, giant supercontinent land mass is called

a)

continental drift

b)

plate tectonics

c)

pangaea

d)

oceanic crust

30.

Plates that diverge or move apart from each other

a)

divergent

b)

transform

c)

convergent

d)

lithosphere

31.

Cracks or breaks in earth's crust where plates slip past each other

a)

subduction

b)

faults

c)

mid-ocean ridge

d)

san andreas

32.

Continental plate collides with another continental plate creates

a)

volcanoes

b)

earthquake

c)

trench

d)

folded mountains

33.

Occurs when a less dense plate slides under a more dense plate

a)

tectonic plates

b)

subduction

c)

continental drift

d)

landmass

34.

What type of plate boundary is shown in the picture

a)

convergent

b)

divergent

c)

transform

d)

faults

35.

Plates boundary where plates slide or move past each other

a)

divergent

b)

continental drift

c)

transform

d)

convergent

36.

The type of geological event that occurs under transform boundaries

a)

folded mountains

b)

earthquakes

c)

volcanoes

d)

tsunamis

37.

Ocean plate collides with ocean plate creates

a)

mid- ocean ridge

b)

sea floor spreading

c)

earthquakes

d)

volcanic ark of islands

38.

What plate boundary is shown in the picture?

a)

convergent

b)

divergent

c)

transform

d)

neither

39.

Which of the following geological events do not occur under divergent boundaries?

a)

sea floor spreading

b)

mid- ocean ridge

c)

volcanoes

d)

rift valley

40.

What type of plate boundary is shown in the picture?

a)

folded mountains

b)

transform

c)

convergent

d)

divergent

41.

Plates collide or converge into each other

a)

divergent

b)

convergent

c)

transform

d)

convection

42.

Which of the following answer choice describes an ocean plate vs continental plate?

a)

creates trench or volcano

b)

creates earthquakes at subduction zones

c)

creates folded mountains or new land

d)

creates rift valleys

43.

Which natural occurance causes the tectonic plates to move?

a)

ocean plates subducted under continental plates

b)

convection currents

c)

continental drift

d)

earthquakes

44.

Subduction occurs under which plate boundary?

a)

lithosphere

b)

divergent

c)

convergent

d)

transform

45.

The plastic like layer of the Earth where the plates move around on like a raft

a)

ecology

b)

tectonic plates

c)

asthenosphere

d)

lithosphere

46.

What is the lithosphere?

a)

upper most part of the crust and lower part of the mantle

b)

upper most part of the mantle and lower part of the crust

c)

mid mantle where convection current occur

d)

part of the liquid outer core

47.

The deepest part of the ocean floor located on both sides of a mid ocean ridge is called

a)

new forming rock under water

b)

oceanic plate

c)

mid ocean ridge

d)

ocean basin

48.

What is happening in the picture?

a)

layers of the Earth are changing positions

b)

the inner and outer core are solid

c)

convection currents are causing the tectonic plates to move

d)

the mantle is growing

49.
Scientists use radioactive decay to measure...
a)
relative time
b)
absolute time
c)
half-lives
d)
time of day
50.
The length of time required for half of the radioactive atoms in a sample to decay is its...
a)
era
b)
age
c)
half-life
d)
eon
51.
How does absolute age differ from relative age?
a)
only absolute dating indicates which rock is older than another
b)
only absolute dating finds the age in years
c)
only relative dating finds the age in years
52.
Radiometric dating is possible because the rates of decay of radioactive isotopes _____.
a)
change over time
b)
change from place to place
c)
are constant
d)
vary widely
53.
If the half-life of a radioactive group of atoms is 100 years, then how old is the rock if there have been two half-lives?
a)
25 years
b)
200 years
c)
400 years
d)
800 years
54.
The original element that undergoes radioactive decay is known as the...
a)
daughter element
b)
half-life
c)
parent element
d)
carbon-14
55.

The element that is the product of radioactive decay is known as the...

a)

daughter element

b)

half-life

c)

parent element

d)

carbon-14

56.

How many grams of Carbon-14 will remain after 17,100 years- C-14 has a half life 5,730 so 17,100 is about 3 half lives?

a)

32 g

b)

16 g

c)

8 g

d)

4 g

57.

What percentage of Rubidium-87 will remain after 4 half-lives?

a)

25%

b)

12.5%

c)

6.25%

d)

3.125%

58.
You find a rock sample with radioactive atoms present.  If 25% of the original radioactive atoms were present, how many half-lives has the rock been around for? (Hint, at Half-Life = 0, you start with 100%)
a)
zero
b)
1
c)
2
d)
3
59.
Two isotopes of carbon are carbon-12 and carbon-14.  These isotopes differ from one another by two protons.
a)
true
b)
false
60.
The table shows the radioactive decay of carbon-14. Part of the table has been left blank. 
 After 22,800 years, approximately what percentage of the original carbon-14 remains? 
a)
15%
b)
12.5%
c)
6.25%
d)
3.125%
61.
The graph shows the generalized rate of decay of radioactive isotopes over 5 half-lives. 
 If the original mass of a radioactive isotope was 24 grams, how many grams would remain after 3 half-lives? 
a)
12
b)
24
c)
3
d)
6
62.
The graph shows the radioactive decay of a 50-gram sample of a radioactive isotope. 
 According to the graph, what is the half-life of this isotope? 
a)
100 years
b)
150 years
c)
200 years
d)
300 years
63.
The characteristic of the radioactive isotope uranium-238 that makes this isotope useful for accurately dating the age of a rock is the isotope’s 
a)
organic origin
b)
constant half life
c)
common 
occurrence in sediment
d)
resistance to weathering
64.
The epicenter of an earthquake is
a)
The point below the surface where rock begins to break and the first motion occurs
b)
The seismic station closest to the earthquake
c)
The place where the greatest damage occurs
d)
The point on the surface directly above the focus
65.
Which travels fastest, always being the first detected by seismic stations?
a)
P waves
b)
S waves
66.
An instrument that detects and measures earthquakes is a 
a)
seismogram
b)
focus seismic map
c)
focus
d)
seismograph 
67.
A tracing of earthquake motion that is created by a seismograph. This can be on a huge sheet of paper, shows P-waves 
a)
Seimogram 
b)
Seismic wave
c)
Carrollton 
d)
Deformed 
68.
Many earthquakes happen along the borders of...
a)
Countries
b)

Tectonic Plates

c)
Climate Zones
d)
None of the above.
69.
The Richter scale measures:
a)
the amount of radon gas released
b)
the movement of plates
c)
the strength of an earthquake
d)
the weight of tectonic plates
70.
The farther a seismic station is from an earthquake, a person will notice that  the time between P and S waves
a)
Increases
b)
Decreases
c)
Same
71.

The place where an earthquake originates inside the Earth's surface is called...

a)

Epicenter

b)

Focus

c)

Underground

d)

Crust

72.

Which city is closest to the epicenter?

a)

A

b)

B

c)

C

73.

Which seismogram represents a city that is far from the epicenter of an earthquake?

a)

New York, NY

b)

Nome, Alaska

c)

Guadalajara, Mexico

74.

S-waves can move through which of the following?

a)

Gas

b)

Liquid

c)

Solid

d)

All of these

75.

What is the minimum number of seismograph stations needed to locate an earthquake epicenter?

a)

1

b)

2

c)

3

d)

5

76.

Which wave can travel through all materials?

a)

P - primary

b)

S - secondary

c)

L - Long

77.

What is the measure of the amount of energy released in an earthquake?

a)

Intensity

b)

Epicenter

c)

Magnitude

d)

Seismogram

78.
Which type of wave arrives first during an earthquake?
a)

Primary (p-wave) waves

b)

Secondary (s-wave) waves

c)

Surface Waves

79.

Which Seismic Wave is pictured?

a)

P-Wave

b)

S-Wave

c)

Surface Wave

80.

Which is the strength of an earthquake?

a)

Plate boundaries

b)

Magnitude

c)

Fault

d)

Seismic

81.

Main type of seismic waves that can only travel through the surface of the Earth.

a)

seismic waves

b)

surface waves

c)

secondary waves

d)

primary waves

82.

The point beneath the Earth's surface where the earthquake begins.

a)

epicenter

b)

fault

c)

focus

d)

magnitude

83.

Which is a fracture in Earth's crust?

a)

Plate boundaries

b)

Magnitude

c)

Fault

d)

Seismic

84.
What type of wave is this?
a)

Primary Wave

b)

Secondary

85.

Which is a disturbance or shaking of Earth's surface?

a)

Landslide

b)

Earthquake

c)

Epicenter

d)

Focus

86.

Which is the location of an earthquake ON EARTH'S SURFACE?

a)

Landslide

b)

Seismic

c)

Epicenter

d)

Focus

87.

It can travel through only the mantle and the crust.

a)

Seismic waves

b)

Surface waves

c)

Primary waves

d)

Secondary waves

88.

Which are waves that carry large amounts of energy?

a)

Richter Scale

b)

Magnitude

c)

Fault

d)

Seismic

89.

Which measures the strength of an earthquake on a scale of 1 - 10?

a)

Richter Scale

b)

Magnitude

c)

Fault

90.

Which of the following statement correctly identifies the focus and epicenter of an earthquake in the given illustration?

a)

Point A is the focus and Point B is the epicenter.

b)

Point A is the epicenter and Point C is the focus

c)

Point A is the epicenter and Point B is the focus.

d)

Point A is the focus and Point C is the epicenter.

91.

What layer of the Earth is labeled A?

a)

inner core

b)

outer core

c)

mantle

d)

crust

92.

Match the layer of the Earth with what it is made of.

a)

Iron

1.

inner core

b)

Iron and nickel

2.

outer core

c)

solid rock and water

3.

crust

d)

fluid rock

4.

Mantle

93.

Which layer is liquid?

a)

crust

b)

mantle

c)

outer core

d)

inner core

94.

Which layer is the HOTTEST?

a)

Crust

b)

Mantle

c)

Outer Core

d)

Inner Core

95.

What state of matter is the inner core?

a)

Solid

b)

Solid but flexible

c)

Liquid

96.

What layer has convection currents?

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer Core

97.

What layer is liquid and makes a magnetic field (polarity)?

a)

Outer Core

b)

Mantle

c)

Inner Core

d)

Crust

98.

What layer of the Earth is labeled B?

a)

inner core

b)

outer core

c)

mantle

d)

crust

99.

What layer of the Earth is labeled C?

a)

inner core

b)

outer core

c)

mantle

d)

crust

100.

What layer of the Earth is labeled D?

a)

inner core

b)

outer core

c)

mantle

d)

crust

101.

Match the layer with its temperature.

a)

Crust

1.

0-70 C

b)

Mantle

2.

1800-6700 C

c)

Outer Core

3.

8000-9000 C

d)

Inner Core

4.

9300 C

102.
Which of the following supports the theory of seafloor spreading?
a)
Correlation of rock layers
b)
Crustal Age
c)
Magnetic Reversal
d)
Continuous Mountain Chains
103.
What causes the crust to move?
a)
convection
b)
conduction
c)
tension
d)
radiation
104.
The zone where one plate slides under another is called the
a)
Convergent zone
b)
Subduction zone
c)
Transform zone
d)
Mantle zone
105.
The entire cycle of heating occurring in the mantle is called
a)
Convection currents
b)
Compound currents
c)
heat currents
d)
 subcurrents
106.
When looking at mid ocean ridges the oldest rocks are 
a)
In the middle
b)
Found close to the rift zone
c)
Found far from the mid ocean ridges
107.

What 3 kinds of evidence were used to prove that the seafloor spread?

a)

Rock formations, age of rocks, WWII shipwrecks

b)

Age of rocks, magnetic seafloor stripes, WWII ship logs

c)

Rock formations, magnetic seafloor stripes, age of rocks

108.
What technology was used during WWII to detect enemy submarines and produce the first map of the seafloor?
a)
Sonar
b)
Radar
c)
GPS
109.
Undersea mountain range.
a)
Rift
b)
Mid-ocean ridge
c)
seafloor spreading
d)
Continental drift
110.

Process by which new ocean crust forms.

a)

Seafloor spreading

b)

Continental drift

c)

Mid-ocean ridge

d)

Rift

111.
Magnetic field that points south.
a)
Modern polarity
b)
Past polarity
c)
Normal polarity
d)
Reversed polarity
112.
Why were magnetic patterns found on the ocean floor puzzling?
a)
They showed alternating bands of normal and reversed polarity.
b)
No rocks were magnetic.
c)
They did not show alternating bands of normal and reversed polarity.
d)
All rocks were magnetic.
113.
The OLDEST seafloor is located? 
a)
Closest to the mid-ocean ridge
b)
Farthest from the mid-ocean ridge
114.
What is label G
a)
Trench
b)
Mid ocean ridge
c)
abyssal plain
d)
sea mount
115.
What are Mid-Ocean Ridges?
a)
A chain of underwater waterfalls 
b)
A chain of underwater volcanos
c)
A chain of underwater mountains
d)
A chain of underwater rocks
116.
True or False : Sea-floor Spreading adds new material to the ocean floor?
a)
True
b)
False
117.
What evidence helps scientists show how sea floor spreading occurs?
a)
Ocean Floor Material
b)
Magnetic Stripes
c)
Drilling Samples
d)
All of the Above
118.

Sea-floor spreading begins at the

a)

Deep ocean trench

b)

Mid-ocean ridge

c)

Continent's edge

119.
New crust is always formed at the...
a)
mid-ocean ridge
b)
deep-ocean trench
c)
asthenosphere
120.
Older crust is found towards the...
a)
Mid-ocean ridge
b)
Deep-ocean trench
c)
Asthenosphere
121.
Which is NOT evidence of sea-floor spreading?
a)
Molten magma constantly erupting
b)
Drilling samples of rock
c)
Magnetic stripes
d)
Fossil evidence
122.

What is label D

a)

Trench

b)

Mid ocean ridge

c)

abyssal plain

d)

sea mount

123.

This scientist was the first to propose seafloor spreading

a)

William Watts

b)

Harry Hess

c)

Alfred Wegener

d)

Tenzing Norgay

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