In layman’s terms, sound editing is about collecting the sounds needed for a film. Sound mixing refers to what is done after they are collected. The sound editing category used to be known as sound effect editing, which is actually the more apt name.

Examples of sounds made by Foley artist

Fire

Prop ideas: cellophane, potato chip bag, steel wool

The idea here is to scrunch up the prop then release it.

Stack of Cash

Prop ideas: old deck of cards, or a cut-up paperback book.

This trick to this effect is using paper sources with softer, flexible textures.