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WorksheetsTectonic plates
Total questions: 30
Worksheet time: 23mins
What was the name of the place where all tectonic plates connected?
wakanda
Pangaea
Zootopia
Yodie land
For how long have plate tectonics been apart for ?
1.9 Billion years
3.4 Billion Years
2 business days
4.5 million years
All plates were once all together?
False
True
How many tectonic plates are there?
21
7
13
1
What lies directly beneath the crust?
The outer core
The mantle
Inner core
What causes the tectonic plates to move?
Light by the sun
Earth rotating
convection of magma
Earth's crust is broken up into several large rocky pieces called ...?
Bowls
Plates
fossils
Rocks
What is the thinnest and outer most layer of the Earth, that we live on?
Pebbles
Crust
Inner core
Which layer of the Earth is solid iron and nickel?
Crust
Inner core
Outer core
Middle core
Earth's plates are....?
Move when they feel like it
Constantly moving and changing the face of the Earth
Never moved
Move seldom and very fast
This scientist built most of the evidence for continental drift.
Alfred Wegener
Sean Carroll
John Williams
Select all that are TRUE about Continental Drift.
Supercontinent was known as Pangaea
Pangaea was the area between continents
Supercontinent was known as Continental Ridge
Continental Ridge was the area between continents
Select all that are TRUE about Divergent Boundary.
Forms Pacific Ring of Fire
Plates will move toward each other
Forms Mid-Atlantic Ridge
Plates will move away from each other
Rocks on each plate rub up against each other and build up a lot of potential energy. Once this energy is great enough, the rocks will break and the energy will be released. This causes...
Earthquakes
First an earthquake and then a volcanic eruption
Volcanic eruptions
Scientists think that the movement of Earth's tectonic plates are caused by convection currents, that are located in the _________?
mantle
outer core
inner core
Which set of events is most common along tectonic plate boundaries?
Earthquakes and volcanoes
Tidal waves and volcanoes
Hurricanes and tsunamis
Hurricanes and erosion
Which of these is a key piece of evidence of contiental drift?
All of the above
Fossil record
Continent shapes
Rock layers
This type of plate boundary is when two plates move apart.
Divergent
Convergent
Subductive
Transform
How many large plates form the outer shell of the earth?
7
5
10
1
Continental crust is _________ than oceanic crust.
Thicker
Thiner
Wider
Closer
The East Pacific Rise and the Mid-Atlantic Ridge represent ____________ boundaries.
Divergent
Convergent
What is subduction.
Subduction is when one lithospheric plate descends beneath another.
When two plates collide
The asthenosphere is composed of __________ _________ mantle.
partially melted
rock hard
Most of the volume of our planet is composed of __________.
Mantle
Crust
Lithosphere
Oceanic crust is on average how thick?
7km
200km
12km
According to plate-tectonic theory where is new oceanic crust being formed?
mid-oceanic ridges or divergent margins
outer crust
What is the likely cause of melting of mantle material along convergent margins?
As the subducted slab descends to about 100 km water and other volatiles are driven off.
The water and volatiles move into the mantle of the over riding plate, effectively lowering
its melting temperature.
Extends from the east coast of the South American continent to the Mid-Atlantic Ridge
The mesosphere underlies the _____________________.
asthenosphere
Crust
Lithosphere
. What are the four driving forces behind plate motion?
convection, gravitational sliding, slab pull, ridge push
Gravitational pull, plate breaking,ridge push , crust forming up
. What are the four driving forces behind plate motion?
convection, gravitational sliding, slab pull, ridge push
Gravitational pull, plate breaking,ridge push , crust forming up
