Q is for Duck. . . because it quacks, of course. Likewise B is for dog, F is for bird, M is for cow, and so on. Not all are as obvious--I is for mosquito because a mosquito bite itches--but all are guessable. And though the rewards are no greater than the effort demanded, this could help to pass time till the bell rings for recess. If more minutes remain, it won't take much to get the kids creating entries of their own.