One of my students mentioned she was going to do an egg hatching unit in school next month for science, and she was struggling in science.
What could I do but take her out and show her Olive with her brood of 9 chicks less than a week old.
Then we pulled Rosie's 3 eggs and brought them into the house to candle in my dark laundry room (normally I just do that at the coop at night, but it was daytime lessons).
ALL 3 are nicely developing for day 14.
My student was awed by the chick movement, and we noted the vein growth and air cell.
We carefully placed the eggs back under Rosie and talked about how she would stay on the nest pretty much 24/7 for 3 whole weeks, periodically turning the eggs.
I then started my student on my 4H egg unit with parts of the egg. We cracked one open and saw the blastoderm, since mine are fertile, and discussed the bullseye shape of the fertile germspot then discussed the albumin and yolk, membranes, chalazae, and shell...how it all works as a wonderously efficient little incubator.
We talked about how when the hen lays the egg at 106degrees, the cooling to ambient temperature vacuum packs the egg, which creates the air cell and helps prevent spoilage, and how the bloom protects from bacteria as well. The fertilized egg remains in stasis until brought to 100degrees for 24 hours, then the embryo begins to develop if kept to temperature for 21 days.
We watched an animated video of the embryo growth over those 21 days.
I left her with some homework sheets and diagrams to continue with next week to hopefully see Rosie's 3 little chicks freshly hatched (due on Saturday, and this is a Saturday student).
I feel accomplished.
For those interested, these are awesome tools for students learning about chick hatching:
(awesome animation of the embryo to chick process)
https://catalog.extension.oregonstate.edu/sites/catalog/files/project/pdf/4-h1500.pdf (excellent egg hatching unit with work sheets useful for multiple grades)
Have fun.
Happy Easter

LofMc