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WorksheetsCTS 8th Grade Science Plate Motion
Total questions: 20
Worksheet time: 11mins
Earth’s _____ layer is made of hard, solid rock.
Inner
core
outer
mantel
Geologists learn about Earth’s history by studying _____ and the _____ within them.
rocks
planets
fossils
animals
Men and women from different ____, _____, and _____ backgrounds work as scientists and engineers.
social
culture
ethnic
class
Earth’s outer layer is divided into sections called ______.
geospheres
continents
zones
plates
Geologists look for patterns in________and in _________ in order to better understand Earth.
landforms
geologic events
history
time
The plates of Earth’s outer layer ______.
are rigid
shrink
move
are weak
__________ provide evidence that the plates of Earth’s outer layer move.
Weather patterns
Earthquakes
Ancient history
Scientists
The most common stress on rocks at convergent plate boundaries is
shear
tension
compression
confining stress
When rocks suddenly move along a fault, the energy released is a(n)
deformation
earthquake
anticline
uplift
A _______________ is a fracture in which there is no movement of rocks
fault
earthquake
ridge
slope
__________ deformation occurs when rock returns to its original shape after stress is removed.
Fault
Elastic
Slip
Land
_______________ is a change in the shape of rock due to stress
Fault line
Stress zone
Deformation
Folding
A rock is more likely to fracture if
it is located on the surface.
it is deep within the crust.
stress is applied gradually.
None of the above
When forces are parallel but moving in opposite directions, the stress is called
subduction
slip
fault
shear
When rocks arch upward to form a circular structure, that structure is called a
basin
fault
dome
cave
When rocks bend downward in a circular structure, that structure is called a
basin
fault
dome
channel
________________ is the distance rocks move along a fault.
Magnitude
Slip
Fault gap
Centimeters
If there is no movement on either side of a fracture, the fracture is called a
subduction zone
slip
fault
joint
___________________ occurs when a deeply buried rock is pushed down by the weight of all the material above it; not allowing it to move, thus not allowing it to deform.
Subduction zones
Confining stress
Fault lines
Earthquakes
The stresses that cause the Himalaya to rise are
tension
compression
shear
confining
