Please enable JavaScript.
Coggle requires JavaScript to display documents.
Discovery of the Earth's Interior (s waves (secondary (2nd release,…
Discovery of the Earth's Interior
how it was discovered
studied earthquakes
seismographs
all over world
record
movement
seismic waves
way of propogate
velocity (sXd)
compare and relate
p waves
primary
1st series energy released
travels through
solid
liquid
gas
compressing when
propogating
different materials
change of velocity
discontinuity
different composition = diff layers
s waves
secondary
2nd release
slower
follows p
travels through
solid
moves
sideways
up and down