How to make all parts in a model transparent at once?

Hello. So I'm trying to make a script that would make all the parts in a model visible for a quick second and then repeat after another 5 seconds (using GetChildren so I wouldn't have to address every single part with a line of code). The problem is that when the script runs, It only makes one part visible at a time. Is there a way I could make it so that all the parts inside the model do the same thing at the same time? Any help would be greatly appreciated.

local gold = game.Workspace.gold
	for i, v in pairs(gold:GetChildren()) do
	if v:IsA("Part") then
	wait(1)
	v.Transparency = 0
	v.CanCollide = true
	wait(5)
	v.Transparency = 1		
	v.CanCollide = false			
		end
	end

Take it out of a While loop. Once the pairs loop goes through once, it seems like its just repeating in the while loop again, instead of continuing the pairs loop.

put whats inside your loop in a coroutine

A coroutine is used to perform multiple tasks at the same time from within the same script.

example

local gold = workspace.gold
for i, v in pairs(gold:GetChildren()) do
	coroutine.wrap(function() 
	 	if v:IsA("Part") then
			wait(1)
			v.Transparency = 0
			v.CanCollide = true
			wait(5)
			v.Transparency = 1      
			v.CanCollide = false            
	 	end	
	end)()
end