Apple Keynote '09 - Manual (Page 112)

112
Slide transitions and object builds can create visual interest
for your slideshow and add emphasis to your points. Keynote
provides a variety of sharp and novel transition and build
effects to help you create a dynamic presentation.
After you’ve created and organized your slides, you can add animated effects that play
between slides and move objects on slides. There are three basic types of animation
you can use in your slideshow:
 Transitions provide visual effects when you move from one slide to the next.
 Object builds (or build effects) move objects on and off slides (the objects appear
and disappear).
 Object actions animate objects within a slide by causing them to move, rotate,
change size, or change opacity.
7
Using Motion in Slideshows