WorksheetsEarth Layers Plate Tectonics
Total questions: 61
Worksheet time: 54mins
Name
Class
Date
1.
Scientists think that convection currents that move the plates flow in Earth's
a)
Continental crust
b)
oceanic crust
c)
Asthenosphere
d)
Lithosphere
2.
Which type of evidence was NOT used by Alfred Wegener to support his continental drift hypothesis?
a)
Similar mountain ranges found on the eastern side of South America and the western side of Africa.
b)
Identical fossils found on different continents.
c)
Tropical plant fossils found in S. America.
d)
Glacial erosion found in Australia and Africa.
3.
Where does molten material from the mantle rise up during the process of sea-floor spreading?
a)
Along the mid-ocean ridge
b)
At the north and south poles
c)
Along the edges of all the continents near the shoreline and beaches
d)
at the equator
4.
The mantle of Earth is made of a plastic like material that when its heated, the material rises, cools, sinks and is then re-heated. This constant flow of a fluid is called
a)
a conduction current
b)
a hot spot
c)
a volcanic eruption
d)
a convection current
5.
In the early 1900's Alfred Wegener found evidence of identical rock types, identical fossils, and matching mountain ranges on different continents that are on opposite sides of an ocean. What could be the explanation for these observations?
a)
All animals can swim extremely long distances
b)
These observations have no significant meaning.
c)
In the past, continents were not located where they are today but were joined together
d)
mountains are made through the same processes therefore they are very similar in their structure throughout the entire world.
6.
How does sea floor spreading occur?
a)
It is a myth and does not occur.
b)
At mid-ocean ridges, magma is forced upward and slowly spreads the plates
c)
Organic material forms limestone on the ocean
d)
The pressure from the ocean water forces down on the sea floor and moves it
7.
Which main layer is more dense than the crust but less dense than the outer core?
a)
mantle
b)
inner core
c)
outer core
d)
crust
8.
How would you describe the outer-core?
a)
liquid nitrogen
b)
liquid iron-rich
c)
solid iron-rich
d)
neither liquid nor solid, but plastic like layer
9.
The Earth is made up of two types of crust. Which is more dense?
a)
Oceanic crust -basalt
b)
Oceanic crust- granite
c)
Continental crust- granite
d)
continental crust- basalt
10.
Which layer does the lithosphere (the outer most layer plus the crust) float on top of?
a)
the crust
b)
lithosphere
c)
asthenosphere
d)
outer core
11.
The San Andrea's Fault in California is which type of boundary?
a)
Convergent
b)
Divergent
c)
Subductive Zone
d)
Transform
12.
At which type of boundary are mountains formed?
a)
Convergent
b)
Divergent
c)
Subductive Zone
d)
Transform
13.
At which type of plate boundary does seafloor spreading occur?
a)
Tranform
b)
Convergent
c)
Divergent
d)
Subductive Zone
14.
Identify each layer - #20.
a)
mantle
b)
asthenosphere
c)
inner core
d)
outer core
15.
Which of the following occurs because of convection currents?
a)
Plates on the crust move.
b)
The mantle increases in size.
c)
Pressure in the crust decreases.
d)
Pressure in the crust decreases. The density of the core increases.
16.
Scientists determine what Earth’s interior looks like by using:
a)
Volcanoes
b)
Seismic Waves
c)
Continental Drift
d)
Convection Currents
17.
Oceanic crust is mostly made of ___________ and continental crust is mostly made of ___________.
a)
Granite, basalt
b)
Basalt, granite
c)
Basalt, shale
d)
Granite, slate
18.
What observation can we make about Earth’s lithosphere AND asthenosphere?
a)
The asthenosphere floats on top of the lithosphere.
b)
The crust and the core make up the lithosphere.
c)
The crust and mantle make up the asthenosphere.
d)
The lithosphere floats on top of the asthenosphere
19.
What is the inner core composed of?
a)
Basalt
b)
Granite
c)
Solid Metals
d)
Molten (liquid) Metals
20.
Which layer of Earth is the thinnest?
a)
Crust
b)
Mantle
c)
Inner Core
d)
Outer Core
21.
What are the two types of crust?
a)
top crust,bottom crust
b)
oceanic crust, continental crust
c)
water,land
d)
none of the above
22.
If you traveled from the center of Earth to the surface, the pressure would...
a)
increase
b)
decrease
c)
stay the same
d)
unsure
23.
True or FalseThe most abundant elements in the Earth's crust are silicon and oxygen.
a)
True
b)
False
24.
True or FalseHeat rising from deep inside earth can move the crust’s plates.
a)
True
b)
False
25.
Wegener's theory states that the continents were once joined to form a supercontinent called.....
a)
Ultron
b)
Pangea
c)
Neverland
d)
Mesa
26.
The theory that all of the continents were one massive continent 250 million years ago is called...
a)
The Theory of Plate Tectonics
b)
The Theory of Relativity
c)
The Theory of Continental Drift
d)
The Theory of Evolution
27.
Which of the following was not a piece of evidence used by Alfred Wegener to explain the Theory of Continental Drift?
a)
Fossils and coal fields
b)
Climate (glaciers)
c)
The shape of the continents
d)
Earthquake patterns
28.
The process where the ocean plate sinks beneath the continental plate and into a trench is called.......
a)
Convergence
b)
Subduction
c)
Mid-Ocean Ridge
d)
Sublimation
29.
What happens when continental crust collides with other continental crust?
a)
It subducts
b)
It forms a mountain
c)
It forms a valley
d)
It explodes
30.
A boundary where two plates pull apart
a)
convergent boundary
b)
divergent boundary
c)
transform boundary
d)
sergent boundary
31.
A boundary where two plates collide into each other.
a)
convergent boundary
b)
divergent boundary
c)
transform boundary
d)
sergent boundary
32.
A place where two plates meet; a break in Earth's crust
a)
plate
b)
fault
c)
fold
d)
crack
33.
This theory states that the continents were once together in a super continent and then drifted apart
a)
Plate Tectonics
b)
Continental Drift
c)
Pangaea
d)
Superpostion
34.
Name the boundary
a)
convergent boundary
b)
divergent boundary
c)
transform boundary
d)
sergent boundary
35.
Name the boundary
a)
convergent boundary
b)
divergent boundary
c)
transform boundary
d)
sergent boundary
36.
Name the boundary
a)
convergent boundary
b)
divergent boundary
c)
transform boundary
d)
sergent boundary
37.
What happens in sea-floor spreading?
a)
New rock forms
b)
New rock sinks into the mantle
c)
Old rock goes to the center of the ocean
38.
This the study and description of the shape of the land and surface features.
a)
Biology
b)
Topography
c)
Geology
d)
Oceanography
39.
The shape of the land is shown by connecting points of the same elevation to form a ____________.
a)
relief line
b)
slope
c)
valley
d)
contour line
40.
Contour lines that are very close together indicate the land is _______________
a)
gentle/gradual
b)
a forest
c)
steep
d)
a swamp
41.
Contour lines that are very far apart indicate the landscape is _____________
a)
gentle/gradual
b)
steep
c)
a forest
d)
a swamp
42.
V-shaped contour lines show a
a)
mountain top
b)
stream valley
c)
depression
d)
steep slope
43.
What could be the lowest elevation in the depression?
a)
50 feet
b)
41 feet
c)
60 feet
d)
51 feet
44.
What is the map symbol (darker lines)?
a)
roads
b)
index contour
c)
contour interval
d)
waves
45.
What is this symbol?
a)
mountain
b)
depression or sinkhole
c)
cave
d)
railroad central
46.
Determine the contour interval:
a)
5 m
b)
10 m
c)
15 m
d)
20 m
47.
What do close contour lines represent on a map?
a)
waterfall
b)
steep area
c)
gradual area
d)
river
48.
Determine the contour interval:
a)
5 m
b)
10 m
c)
15 m
d)
20 m
49.
Which direction is the river flowing?
a)
north
b)
south
c)
east
d)
west
50.
How many mountain peaks are represented?
a)
one
b)
two
c)
three
d)
four
51.
What could be the elevation of the mountain top?
a)
860 km
b)
840 km
c)
841 - 859 km
d)
861 - 869 km
52.
An area's height above sea level
a)
topography
b)
relief
c)
elevation
d)
GIS
53.
Find the contour interval:
a)
5 ft
b)
10 ft
c)
20 ft
d)
25 ft
54.
What is the elevation of point B?
a)
800 ft
b)
850 ft
c)
900 ft
d)
1000 ft
55.
The slow breakdown of rock over time is called ______
a)
eruption.
b)
landslides.
c)
erosion.
d)
weathering.
56.
Magma is called lava when it reaches ______
a)
the sea.
b)
the magma chamber.
c)
the Earth's surface.
d)
the bottom of the mountain.
57.
Erosion happens slowly and is because of ______
a)
a fast change.
b)
volcanoes, earthquakes and landslides.
c)
people earthquakes and mountains.
d)
water, wind, gravity and animals.
58.
If you drop a piece of chalk into a cup of vinegar, the chalk will fizz and dissolve after a few minutes. This process is an example of:
a)
chemical weathering
b)
differential weathering
c)
mechanical weathering
d)
infiltration
59.
Ice, wind, water, gravity, plants, and animals are ALL causes of:
a)
chemical weathering
b)
mechanical weathering
c)
oxidation
d)
mass movement
60.
Which of the following is an example of mechanical weathering?
a)
Acidic groundwater dissolving limestone
b)
frost wedging
c)
Paper being burned
61.
Which of the following is an example of chemical weathering?
a)
Acid rain dissolving limestone
b)
roots breaking into concrete
c)
paper being ripped
100 %
