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WorksheetsReview- Unit 7 The Dynamic Earth
Total questions: 86
Worksheet time: 1hrs 15mins
A small volcano with steep sides.
cinder cone
composite
strata
shield
A broad volcano with gently sloping sides is a ________________
Shield
Cinder Cone
Fire Fountain
Composite
A steep-sided volcano formed from layers of lava and ash.
Strata or composite
shield
cinder cone
fire fountain
Lava that is very thin and runny probably
has low silica content
is high in silica
Pyroclastic material forms when
magma explodes into the air and travels down the mountain very fast
lava flows calmly from a crack in the Earth´s crust
magma remains underground too long
lava flows underwater
A combination of explosive and quiet eruptions will create a
composite volcano
shield volcano
cinder cone volcano
Where are volcanoes most likely to form?
along plate boundaries
near the center of continents
near water
on the moon
One major belt of volcanoes that surrounds the Pacific Ocean
Ring of Fire
Ring of Asia
Ring o' earthquakes
Ring a ding ding
An area where material from deep within Earth's mantle rises through the crust and melts to form magma.
hot spot
rift zone
hot soup
hot mamma
Before lava reaches the surface, the molten material is called ____.
rock
magma
volcanic ash
liquid fire
_________ lava has solidified as rounded masses, characteristic of eruption under water.
Aa
Pillow
Pahoehoe
Blocky
______ forms when lava flows rapidly.
Aa
Pahoehoe
Pillow
Blocky
_____ lava is cool, stiff and can not travel far from the erupting vent.
Aa
Pahoehoe
Pillow
Blocky
_______ lava moves slowly and has a smooth, billowy or ropey surface.
Aa
Pahoehoe
Pillow
Blocky
__________ is lava that forms a thick, brittle crust as it cools. The crust is torn into sharp pieces as lava moves underneath it.
Aa
Pahoehoe
Pillow
Blocky
__________ is lava that forms a thin, flexible crust as it cools. The crust wrinkles as the lava moves underneath it.
Aa
Pahoehoe
Pillow
Blocky
Pahoehoe lava is thinner than blocky lava.
true
false
Pillow lava has a rounded shape because _____.
contact with water causes rapid cooling of the lava's surface
it has a cushiony inside
it flows quickly down the base of the volcano
it solidifies in the air
What does the movement of tectonics plates cause?
Stress on rocks.
Deposition of sediments
Erosion of rocks
All of the above.
What is deformation?
Process when the rocks break apart or erode.
Process of when rocks melt away.
Process when rocks change shape under pressure.
The way your bedroom looks before you clean it.
What occurs during folding?
Rocks change color.
Rocks form and create a landslide.
Rock layers combine to create a mountain.
Rock layer bend under stress.
What are two types of folding?
Horizontal and Vertical
Synclines and Anticlines
Up and down
Bottom and Top
What happens in reverse faults?
The hanging wall move upward relative to the footwall.
The hanging wall moves downward relative to the footwall..
The fault causes a reaction having magma rises up and create a mountain.
The blocks move sideways relative to each other.
How do Volcanic mountains form?
Rock combines with water to create a tight structure for a mountain.
Compressional stress causes blocks to fold and move upward.
Molten rock erupts on earth surface, and creates a mountain structure.
Rock and lava form a beach.
How do Fault-Block mountains form?
Tension pushes the blocks of lithosphere on top of each other.
Tension makes the lithosphere break into many pieces causing some to fall relative to others.
Shear stress makes the mountains break.
Compression makes the mountains rise up.
How do Folded Mountains form?
Tension breaks the lithosphere into pieces causing some to fall relative to others. .
Magma erupts from the crust.
Magma under the crust pushes the layers upward.
Compression causes layers to be squeezed and pushed upward.
Normal faulting occurs where tensional stresses cause the crust to be stretched.
Grabens produce an elongated valley borded by horsts.
syncline
anticline
reverse fault
normal fault
How do faults and folds compare?
Faults are bends in rock where rocks move, and folds are breaks in rocks.
Faults are breaks in rock where rocks move, and folds are bends in rock.
Faults are bends in rock where rocks do not move, and folds are breaks in rock.
When upwarping produces a circular or an elongated structure, the feature is called a ______
fold
dome
basin
plateau
The place where an earthquake originates inside the Earth's surface is called...
Epicenter
Focus
Underground
Crust
The place on the Earth's surface, above the origin of the earthquake.
Epicenter
Focus
Surface
Crust
What is the instrument used to measure earthquakes?
Seismograph
Seismologist
Scale
Seismogram
Which city is closest to the epicenter?
A
B
C
Which seismogram represents a city that is far from the epicenter of an earthquake?
New York, NY
Nome, Alaska
Guadalajara, Mexico
5. Which type of wave travels the fastest?
Primary Wave
Secondary Wave
Long Wave
This is created by earthquakes that occur on the ocean floor.
longshore current
gulf stream
tsunamis
high tide
What scale determines the amount of damage an earthquake causes?
Richter scale
Mercalli scale
Moment magnitude scale
seismographic scale
S-waves can move through which of the following?
Gas
Liquid
Solid
All of these
What is the minimum number of seismograph stations needed to locate an earthquake epicenter?
1
2
3
5
Which wave can travel through all materials?
P - primary
S - secondary
L - Long
Measures the magnitude or size, of an Earthquake
epicenter
focus
Richter scale
Mercalli Scale
What is the measure of the amount of energy released in an earthquake?
Intensity
Epicenter
Magnitude
Seismogram
The boundary between the Earth's crust and asthenosphere:
Lithosphere
Moho
Strike - slip
Troposphere
How do scientists know that the outer core is a liquid?
P waves do not travel through the outer core but S waves do.
S waves do not travel through the outer core but P waves do.
P waves and S waves do not travel through the outer core.
P waves and S waves travel through the outer core.
