Inside the Earth
Physical Layers
Plate Tectonics
Vocabulary
This and That
100
the thin, outermost layer of the Earth, or the upper most layer of the lithosphere
What is crust
100
the outermost rigid layer of the Earth or the "rock sphere"
What is lithosphere
100
Pieces of the lithosphere that move around on top of the asthenosphere
What is plate tectonics
100
the process by which new oceanic lithosphere is created at mid-ocean ridges as older material are pulled away from the ridge
What is sea-floor spreading
100
Knowledge about the structure of the Earth comes from...
What are seismic waves
200
the layer of the Earth between the crust and the core
What is mantle
200
The liquid part of the Earth's inner most layer
What is outer core
200
A theory that continents can drift apart from one another and have done so in the past
What is continental drift
200
the boundary between two colliding tectonic plates
What is convergent boundary
200
The crust near the edge of continents may have also been roamed by what animal
What is a dinosaur
300
the central, spherical part of the Earth below the mantle
What is core
300
The solid, dense center of our planet
What is the inner core
300
Continents were once joined together as one giant landmass
What is Pangaea
300
a break in the Earth's crust along which two blocks of the crust slide relative to one another
What is a fault
300
What is the average distance a tectonic plate moves each year?
What is 3 centimeters
400
Has a composition similar to granite and can range from 30 km to 100 km in thickness
What is continental crust
400
The strong layer of the Earth or the "middle sphere"
What is the mesosphere
400
One body of water called "all sea"
What is Panthalassa
400
the region where an oceanic plate sinks down into the asthenosphere at a convergent boundary
What is subduction zone
400
Mountains can be classified into _____ groups depending on how they form. (looking for a number)
What is 3
500
A composition similar to basalt and is only 5 km in thickness
What is oceanic crust
500
The soft layer of the mantle on which pieces of the lithosphere move or the "weak sphere"
What is the asthenosphere
500
A submerged mountain range running through the middle of the Atlantic Ocean
What is the Mid-Atlantic Ridge
500
the boundary between two tectonic plates that are moving away from each other
What is divergent boundary
500
Layers of rock can bend if enough stress or pressure is applied. (T or F)
What is true