A wave
The disturbances in waves are the ones that push the waves. This can be defined as a variation or oscillation that travels though a medium from one point to another.
Radio frequencies, UV rays, sound, light, and electricity travels from one place to another during a wave motion.
A Stamp
it often changes form.
The answer is electrons.Electrons are more mobile than protons.Thus it moves from one object to another.
communication
Refraction is what light does when it travels from one material to another. Refraction is when the light changes direction because it is passing through one medium to another.
a person with good qualities , (that qualifies as a hero) that travels from one place to another, or on a voyage BY: Mya C.
it goes from one place to a different place :)
An Aircraft fly from one place of earth to another place. Whereas a spacecraft travels from earth to a heavenly bodies or vice versa.
Refracts
the difference between travelers from visitors is the traveler travels from one place to another while visitors visits a certain place and stays for a moment of time.