when a line appears in the surface of something solid
crack
when something is pulled along the ground with difficulty
drag
to fall down suddenly due to pressure or no support
collapse
when a volcano explodes and lava or rocks come out
erupt
when a liquid moves quickly in one direction
run
to move gently through water or the air
float
to move up and down or backwards and forwards in quick, short movements
shake
to break into a lot of pieces with a loud noise
smash
