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WorksheetsScience Honors Mid Term 19-20
Total questions: 20
Worksheet time: 10mins
Where are convection currents found?
mantle
outer core
inner core
asthenosphere
Convection currents are caused by differences in what two things?
thickness & material
weight & electricity
temperature & density
Explain what is happening at point "A" on the diagram
material is heated again by core, lowering the density
material cools, becoming denser, then begins to fall due to gravity
rising material hits lithosphere and slides, moving plates with it
less dense material is heated and begins to rise
Explain what is happening at point "B" on the diagram
material is heated again by core, lowering the density
material cools, becoming denser, then begins to fall due to gravity
rising material hits lithosphere and slides, moving plates with it
less dense material is heated and begins to rise
Explain what is happening at point "C" on the diagram
material is heated again by core, lowering the density
material cools, becoming denser, then begins to fall due to gravity
rising material hits lithosphere and slides, moving plates with it
less dense material is heated and begins to rise
Explain what is happening at point "D" on the diagram
material is heated again by core, lowering the density
material cools, becoming denser, then begins to fall due to gravity
rising material hits lithosphere and slides, moving plates with it
less dense material is heated and begins to rise
Who first proposed the theory of continental drift?
Hess
Pangea
Wegener
Wilson
All are evidence to support the theory of continental drift EXCEPT
land features
climate change
fossils
rainfall
Sea-floor spreads apart at both sides of a ______ as new crust is added
mid-ocean ridge
rift valley
trench
mountain
Rocks on the sea-floor that lie in a pattern, show a record of the reversals of Earth's
atmosphere
magnetic field
temperature
diversity
Drilling samples revealed that rock samples taken farther from a mid-ocean ridge are
older
younger
hotter
crystal
Divergent plate boundaries
move apart
collide
slide past one another
Convergent plate boundaries
move apart
collide
slide past one another
Transform plate boundaries
move apart
collide
slide past one another
How does a divergent plate boundary effect Earth's Crust?
plates pulled apart
mountain are built or subduction occurs
crust is sheared
How does a convergent plate boundary effect Earth's Crust?
crust pulled apart
mountain are built or subduction occurs
crust is sheared
How does a transform plate boundary effect Earth's Crust?
crust pulled apart
mountain are built or subduction occurs
crust is sheared
Which plate boundary forms mid-ocean ridges & sea floor?
divergent
convergent
transform
Which plate boundary forms mountains & volcanoes?
divergent
convergent
transform
Which plate boundary forms earthquakes & faults?
divergent
convergent
transform
