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33 questions
Earth's plates meet at ____________.
plate tectonics
plate boundaries
continental drift
oceans
Breaks in the crust called __________ form where plates meet.
mountains
rift valleys
faults
trenches
Plates slide past each other at _________________ boundaries.
divergent
convergent
transform
universal
A __________ forms where plates diverge on land.
rift valley
mid-ocean ridge
mountain
trench
The place where two plates come together is known as a _______
transform boundary.
divergent boundary.
convergent boundary.
rift valley.
Rocky or rigid outer part of Earth consisting of the brittle crust and the top part of the upper mantle
Lithosphere
Oceanic Crust
Continental Crust
Asthenosphere
Hot fluid or semi-fluid material below or within the earth's crust from which lava and other igneous rock is formed on cooling.
Convection Current
Lithosphere
Core
Magma
The thick part of the earth's crust that forms the large landmasses. It is generally older and more complex than the oceanic crust.
Oceanic Crust
Continental Crust
Magma
Inner Core
Which statement best describes why fossils of the same land-dwelling species have been discovered in both South America and Africa?
The organism migrated to two continents
The organisms were separated by the formation of new mountain ranges
The organisms became extinct due to climate change on these continents
These organisms once lived on one large landmass that later split into two continents
What best describes continental crust?
thick and light
thick and dense
thin and dense
thin and light
Which is TRUE about the continental crust?
It is the thicker but less dense than oceanic crust and older
it is thinner than oceanic crust and older
it is denser than oceanic crust and younger
it is thinner and more dense than the oceanic crust and younger
What best describes oceanic crust?
thick and light and old
thick and dense and old
thin and dense and young
thin and light and young
Ocean crust is made of _______ and is _______ dense than continental crust.
basalt, less
basalt, more
granite, less
granite, more
What type of event will occur at this boundary?
Earthquake
Volcano Eruption
Tornado
Mountain Building
Which statement BEST describes what is happening in this image?
the continental crust is melting
the denser oceanic crust is subducting under the less dense continental crust
volcanic islands are forming
the tectonic plates are moving away from each other
In some areas of the world, like California and Japan, earthquakes are a common occurrence. How can this best be explained?
The strong ocean currents are undermining both areas causing earthquakes.
Both areas are located near the edge of the Pacific Ocean, the unstable sand causes earthquakes.
Both areas are subjected to strong ocean wind and waves that causes earthquakes.
Both areas are on the boundary of active plates, the motion of the plates causes earthquakes.
The map in the picture shows tectonic plate boundaries. This map would be useful in predicting the location of future
droughts
hurricanes
earthquakes
tornadoes
The surface of the earth, otherwise known as the ______, is broken into 15 pieces and sits atop a liquid layer called the _______
lithosphere, asthenosphere
astenosphere, mantle
crust, litosphere
asthenosphere, lithosphere
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