Does apple care cover for a cracked screen?

Only if you have an iPad 3 and purchased Apple Care +

for the rest of us, Apple's way to 'fix' the screen is to sell you a refurb iPad for a starting price of $249 and up (Depending on model)

you can find third party repair places that may be cheaper, but if you use them any remaining factory warranty you have will be void

Apple Care + will cover up to 2 incidents of accidental damage but there is a $49 additional cost for each incident, The standard warranty that comes with the purchase of the iPad will not cover a cracked screen due to it being accidental damage and not a manufacturing defect.