Vocabulary number 5

Universe :everything that exists.

Telescope:a divice that collects light and makes distance object appear closer an larger .

refraction: the bendind of waves as they go from one substace to another.

reflection:the bouncing of  waves off a surface.

wavelength:the distance from one peak to the next on a wave.

frequency:the number of wave that pass through a point in a second.

electromagnetic spectrum:waves  of light in order by waveleght.