How to hide a slide's content, then reveal bullet pointed lines one at a time?

[150mph]

Noob here.

My PP presentation is a Quiz and I dont want the all the answers revealed until I read them - like a game show.

Does PP offer an easy way to keep everything on the slide covered up, so I can reveal each line of type as I read it aloud? ie, I dont want the entire slide showing when it loads, just the question, and then one at a time, i can drag down (some kind of user-controlled mask?) the mask to reveal the 3 answers as I read them.

How would you go about creating this effect for your digital projector presentation?

http://s29.postimg.org/k1h7bim13/Picture_3.png

[JohnWilson]

There are PC instructions here.

Since all your posts refer to Macs you might also want to ask in the Mac Specific Forum here
EDIT
OK I just saw that you did!

Please when you cross post say so because otherwise people can be working on a solution when it is already solved!