Forum:FLIP: For Fusion?

If my monster is flip face-up for a fusion summon is the effect of FLIP effect monster will be activated?

For an example

I use "Polymerization" to fusion summon "Worm Zero" then my fusion materials is 3 "Needle worm"s on the field and it's all faced-down.

So I must reveal my face down card.(Am i correct?)

After that All Needle worms are flip face up for the fusion.

In this solution "FLIP" Effect will be activate?

Thx for respond.