I am doing a life cycle science lesson in my class. I received my 18 eggs back on the 7th of April, Incubation started on the 8th. I am at Day 20 and have put them on lock down with one starting to hatch on Monday. I only have 1 hatching! Out of the 18. I am new to hatching and have followed the directions. Some of the eggs when they roll go to a "heavy" side. Will these other eggs hatch? My fellow teacher said if you put them to the ear you can hear them, I cannot. Also the chick(?) that has been hatching since Monday Morning is still hatching. I have been looking for information about temp and humidity during lock down but cant find any.