So the kids are closely following my first attempt at hatching chickens. I have never incubated any eggs with them. So we are 5 hours short of 3 full days and they are very insistent that the eggs must be overdue. No amount of explaining convinces them. My son is positive the chicks are moving in the eggs so much by now that they are rattling the table they are on. They aren't but whatever. So thinking candling them and letting them see would help but really all we could see was the air sac. Nothing else. These are light brown to dark brown eggs. At what point will there be something to show them.