4 weeks old? That is still kinda young. Don't worry. they are still figuring the world out and will get it. We always start our kittens out on a all wet diet until we feel that they are old enough to eat hard food without choking. If we see that choking is a problem with one or two kittens (the do have tiny mouths, even for kitten food, and do choke) we soak the dry kitten food in water, you could use broth too but it would take longer to soak, and we feed that to the kittens too.
And to get our kittens use to drinking/eating out of bowls/plates, I put room temperature milk replacement in a bowl/plate and hold the kitten in front orf it, dip my finger in it and rub it in their mouth, usually after that they go for it.
Warning, they will jump into water and food bowl, be prepard to have to clean them off a few times!!!! Always make sure that the water bowl is shallow enough that if a kitten got in it that it can get back out!
Good luck with babies and keep us updated!