Earth's Layers
the outermost layer of the Earth
What is the crust?
the type of boundary that occurs when two plates slide past each other
What is a transform boundary?
the person who proposed the theory of continental drift
Who is Alfred Wegener?
the process that creates new ocean crust
What is seafloor spreading?
the process by which liquid changes into a gas
What is evaporation / vaporization?
the layer of the Earth that is located directly beneath the crust; the thickest layer
What is the mantle?
the type of boundary that occurs when plates collide
What is a convergent boundary?
the name of the supercontinent proposed by Wegener
What is Pangaea?
the formation of this is the result of seafloor spreading at mid-ocean ridges
What is new ocean floor / crust?
Name 4 of the 7 waves on the electromagnetic spectrum.
Radio, Microwave, Infrared, Visible Light, Ultraviolet, X-ray, Gamma
the layer directly beneath the lithosphere; molten and semi-fluid, allowing the plates above to move
What is the asthenosphere?
the process by which one tectonic plate moves underneath another
What is subduction?
the three types of evidence to support the theory of continental drift
What are geological similarities (landforms), fossils, and climate evidence?
the material that rises from the asthenosphere, filling the gap between diverging plates
What is magma?
the part of a sound wave that determines its loudness
What is amplitude?
the solid inner-most layer of the Earth; the most dense layer
What is the inner core?
the feature that forms when two continental plates diverge
What is a rift valley?
Continents do this over time
What is move?
a feature that forms along oceanic-oceanic divergent boundaries
What is a mid-ocean ridge?
Which is most dense: an iron bar or a wooden block?
What is an iron bar?
Describe the lithosphere and its relationship to the asthenosphere
The lithosphere is the rigid outer layer of the Earth, consisting of the crust and upper mantle, while the asthenosphere is a semi-fluid layer beneath it that allows for tectonic movement.
What are convection currents and how do they relate to plate tectonics?
Convection currents are the circular movements of molten rock in the mantle that drive the movement of tectonic plates.
How does the concept of continental drift relate to plate tectonics?
Continental drift is a key component of plate tectonics, explaining how continents have moved over time and the interactions between tectonic plates.
oceanic crust is made of this material
What is basalt?
the curved outer layer of the human eye
What is the cornea?