 The problem of temporary intrinsics focuses on the possibility of persisting things changing their properties, or, at least, changing their intrinsic properties. Many of the problems about identity through time are posed by puzzle cases that involve change of parts. Four dimensionalism is one, widely accepted, solution to those puzzles. It is not overstretching it to suggest that each of the puzzle cases we will shortly consider appears to be a case of temporary identity. That is, each one appears to be a case of the following. For some x and y, at some time t x is identical with y, and at some time t′ x is distinct from y.