P waves and s waves

seismic waves

happen after a earthquake

when the seismic waves hit a boundary/ two different materials in Earth they either… or …

refract or absor

when they refract they will

gradually change speed and curve

the more abrupt the change in property the more

sharp curve

there are two waves which are

s waves and p waves

p wave properties

faster than s waves, can travel in liquids and gas ,longitudinal

s waves properties

slower than p waves,transverse, cannot travel and liquid and gas

as s waves cannot travel in liquid they curve away and out from which earth layer

outer core

as p waves can travel through liquids they can go all the way and be detected at

bottom of Earth

image of p waves and s waves travelling