Tectonic Plate Boundaries Pangaea and Continental drift Tectonic Plates Layers of Earth Random
100
What is a a boundary?
It is a place where tectonic plates meet.
100
What is Pangaea?
A single large continent that means all earth in Greek.
100
What is Plate Tectonics?
The theory that Earth's lithosphere is divided into tectonic plates.
100
What is the core?
The central part of Earth below the mantle.
500
What is sea floor spreading?
The process by which new oceanic lithosphere forms as magma rises to Earth's surface.
200
What is a convergent boundary?
The boundary at which two tectonic plates collide.
200
What is continental drift?
The idea that states that the continents once formed a single land mass that then broke up, and drifted to their present location.
200
What do tectonic mostly contain?
Oceanic crust.
200
What is the crust?
The thin and solid outermost layer of Earth above the mantle.
200
What is mesosphere?
Below the Asthensosphere.
300
What is a divergent boundary?
The boundary at which two tectonic plates separate.
300
What are Laurasia and Gondwanaland?
The two continents that split away from the one super continent.
300
What are tectonic plates?
Pieces of lithosphere moving around on the top of the Asthenosphere.
300
What is the mantle?
The layer of rock between Earth's crust and core.
400
What is continental crust?
It is thicker than oceanic crust.
400
What is an Island Arc?
A series of volcanic Islands.
400
What evidence is there for continental drift?
Fossils of organisms were found on different continents this is evidence for this theory.
400
How fast do tectonic plates move?
They move between 2.5 cm per year and 15 cm per year.
400
What is the lithosphere?
The solid outer layer of Earth that consists of crust and rigid upper part of the middle.
300
What is transform boundary?
At which two tectonic plates slide past one another.
500
What is subduction?
A plate of oceanic lithosphere may collide with a plate of continental lithosphere. The denser oceanic oceanic crust sinks, beneath the less dense continental crust.
500
Who the first to hypothesize Continental drift?
Alfred Wegener.
500
What is Earth's major tectonic plates?
They are the North American, Pacific, Nazca, South American, African, Antarctic, Indian, Eurasian, And Australian plates.
500
What is Asthenosphere?
The soft layer of the mantle on which the tectonic plates move.
100
What is a seismometer?
It measures the time seismic waves take to travel various distances.






Plate Tectonics

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