Nie mogę nic lepszego znaleźć. Patrz:
http://office.microsoft.com/pl-pl/assistance/HP030833141045....

Nie wiem, może by coś dodać jak 'animacja przez rozbudowę/ przyrost' (nie wiem czy Twoje slajdy są z tekstem czy czymś innym.)

Na angielskim helpie są takie hasła jak:

Build text on a slide one bullet at a time

To build text on a slide one bullet at a time, it is quickest and easiest to apply a preset animation scheme (animation scheme: Adds preset visual effects to text on slides. Ranging from subtle to exciting, each scheme usually includes an effect for the slide title and an effect that is applied to bullets or paragraphs on a slide.). The most commonly used animation schemes for doing this are Fade in one by one, Wipe, or Dissolve in, but you can experiment with the other preset animation schemes as well to find the one that builds the slide the way you want.

..a na polskim nie ma