I just found out via Richard Byrne that the The New York Times Learning Network is holding its second annual 15-Second Vocabulary Contest. This contest, which is open to anyone between the ages of 13 and 19, asks students to create a video in which they pronounce, define, and illustrate—using animation, drawing, acting, claymation, stop-motion, whatever—the meaning of one of the Learning Network's Words of the Day.
Submissions are due by November 11. Complete contest rules are available here.
To give you a sense for what the Learning Network is looking for in submissions, check out last year’s winning video created by Sam Jenks.