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WorksheetsPlate Tectonics and Earth's Structure
Total questions: 20
Worksheet time: 18mins
What is the theory that explains how the Earth's lithosphere is divided into several large and small plates that move and interact with each other?
Continental Drift
Pangaea
Plate Tectonics
Seafloor Spreading
Who proposed the theory of continental drift?
Alfred Wegener
Isaac Newton
Marie Curie
Charles Darwin
What is the name of the supercontinent that existed about 300 million years ago, which later broke apart to form the current continents?
Atlantis
Laurasia
Gondwana
Pangaea
What are the three types of plate boundaries?
Divergent boundaries, convergent boundaries, and transform boundaries
Subduction boundaries, collision boundaries, and sliding boundaries
Tectonic boundaries, fault boundaries, and rift boundaries
Oceanic boundaries, continental boundaries, and island boundaries
Which type of plate boundary occurs when two plates move away from each other?
Transform plate boundary
Divergent plate boundary
Convergent plate boundary
Subduction plate boundary
Which type of plate boundary occurs when two plates collide and one is forced beneath the other?
Subduction plate boundary
Convergent plate boundary
Transform plate boundary
Divergent plate boundary
Which type of plate boundary occurs when two plates slide past each other horizontally?
convergent plate boundary
divergent plate boundary
subduction plate boundary
transform plate boundary
What is the term for the shaking or trembling of the Earth's surface caused by the sudden release of energy in the Earth's crust?
ground shaking
tremor
seismic activity
earthquake
Which best describes the relationship between depth into the earth and temperature/density/pressure?
As depth into the earth increases temperature, density, and pressure decrease.
As depth into the earth increases temperature, density, and pressure increase.
As depth into the earth decreases temperature, density, and pressure increase.
As depth into the earth increases temperature and density increases but pressure decreases.
Which layers of the earth make up the lithosphere?
Upper mantle and crust
continental and oceanic crust
Mantle, crust, outer core
Inner core and outer core
71% of earth's surface is covered in ___________.
Trees
Desert
Urban development
Water
What is the energy source for convection currents in the asthenosphere?
Geothermal heat
Heat from the sun that permeates through earth's crust
Heat from the core
Earth's magnetic field
Which type of crust is denser; continental crust or oceanic crust?
Continental crust
Oceanic Crust
Why does oceanic crust subduct below continental crust?
Continental crust is denser than oceanic crust
Oceanic crust is more drawn to earth's iron core
Oceanic crust is denser than continental crust
Oceanic crust is further below continental crust so it's the first to subduct
Where do volcanoes tend to form?
Hotter area's of the earth
Geothermal vents
Island chains
Subduction zones
Which of these is not a geological event due to the movement of tectonic plates?
Deltas forming
Volcanoes
Earthquakes
Mountain forming
Why do volcanoes form at subduction zones and not other boundaries?
Convergent boundaries produce infant volcanoes that are destroyed before they can release magma.
At subduction zones the dense oceanic crust melts, becomes less dense, and rises to the surface as hot magma
Transform boundaries are when tectonic plates slide past each other creating too much energy that would destroy volcano formation
Why would fossils of the same type of land animal be found on two continents separated by an ocean?
Early humans brought plant and animal specimens between continents
Over time the land animals evolved flippers, gills, and other aquatic body parts to swim to the other continent
The continents were once together in Pangea
The environments the fossils were found in are similar. Therefore they created the same types of animals.
Why does magma rise in convection currents when it's heated up and sink when it cools down?
When magma heats up it become less dense which causes it to rise.
When magma heats up it becomes attracted to the oceanic crust on the surface
When magma cool off it becomes more attracted to earth's core so it sinks
Which of these observations DO NOT support continental drift theory
The continents seem to fit together well
The same fossils are found on different continents
Different landforms are found on different continents
The continents are still moving a few centimeters each year
