Once you add an animation to any slide object, you can play the animation in Slide Show view by clicking your mouse cursor or pressing the spacebar on your keyboard. Another option is to use a button on a presentation remote — each of these options advances one animation at a time, or may even take you to the subsequent slide. While this approach works for slides that have an animation or two, you will quickly realize that this is certainly not the way to go if your slides have tens of animations, or more. If you add that many animations to any slide, you probably want your animations to be automatically sequenced — that’s exactly where PowerPoint’s animation events can help. PowerPoint supports three types of animation events.
Learn about Animation Events in PowerPoint 2010 for Windows.

