Myth is usually recorded in written record as on the othe hand folklore is usually carried on by word of mouth. Myth is merly an exaggerated outlook to understand natures forces. For example, Chaos was the creator. There was a god for everything; the sun, moon, war, fertility, water, etc..... Folklore, I'm not so sure about the origin. It could be along the same lines as myth so far as to understand something that has happened and then exaggerated over the years of being passed on by word of mouth.