science chapter 7 Flashcards
crust waves are vibrations that travel through earth and are caused by earthquakes
false SEISMIC waves are vibrations that travel through earth and are caused by earthquakes
S waves are seismic waves that move with a side to side motion
true
P-waves are not able to pass through the outer core
False S-waves are not able to pass through the outer core of earth
after an earthquake, P-waves travel faster than S-waves
true
by observing P-waves scientist are able to realize that the outer core of earth is liquid
FALSE by observing S_WAVES scientist were able to realize that the earths is liquid
the plates that move above the earths surface are piecis of lithosphere
true
the outer most layer of earth is called the mantle
FALSE the outer most layer is called the crust
the lithosphere is the layer of earth that consists of the crust and the upper mantel
true
earths magnetic field is generated in earths inner core
FALSE earths magnetic field is generated in earths OUTER CORE
continental crust is primarily composed of granite
true
The material that makes up earths core is denser than the material in the mantel
true
the movement of the lithospheric plates is thought to be
caused by convection currrents in earths lower mantel
true
BLANK are vibrations that travel through earth and are caused by earthquakes
SEISMIC WAVES
A BLANK is a scientist who studies seismic waves and earthquakes
SEISMOLOGIST
S-waves travel BLANKER than P-waves
SLOWER
The place within earth where an earthquake originates is called the BLANK
FOCUS
the BLANK is the outwr most layer of earth
crust
earths blank is solid
inner core
the blank includes the crust and a thin part of the mantel
lithosphere
the continental crust floats BLANK in the mantle than the
oceanic crust
higher
earths magnetic field orininates in the blank
outer core
