You can feed them a crumble feed for chicks, available in many places. For water, put marbles in the water, so they drink between the marbles, getting plenty of water, but can't drown in it.
The shiney marbles encourages them to drink more. Keep them out of drafts, and warm, but not too hot. Try not to handle them overly much.
Good luck, most baby chicks like quail and chickens and all do quite well.