Category Archives: Eggs

Egg Science


I get my eggs from my local 4h chapter..I’m not sure if they have one near you. You can also call local feed stores to see where to get chicken eggs or even duck eggs…. We have a feed sore in MA called Agway where I purchased my incubator for $45. I’m also finding teacher stores that have them. Once you have an incubator and a place to get the eggs from you want to turn the incubator on 24 hrs before you put the eggs in to regulate the temperature to 99 F. When I get the eggs I take a pencil and mark an “o”

On one side and then an “x” on the other this helps me know which side I have turned the eggs to…You have to turn the eggs 3 times a day and this helps you keep track i.e. at 8am it was the “o” and then at 12 it was “x” and at 4 it was “o” etc… You keep water at the bottom of the incubator as well. At about day 18 you stop turning the eggs to give the chicks a chance to

Reorient ate themselves so they will hatch up. They will hatch around day 20/21 or a little after…. About once a week I take the eggs out and “candle” them with a bright light from a projector You can see the development of the chick through the eggs even if they are brown. You first look for the black eye a good book is “Inside An Egg” by Sylvia Johnson Once the chicks hatch you take them out and put them in another container where you can keep the heat at 98-99 F for at least another week. You will also need to figure out what to do with them after about a month which is when farmers out here will take them. At the feed store you can get special medicated food for them as well as the small stones they need

I love this project and my students do too..the hardest part is finding a place to get the eggs. I know there are some places on the web where you can mail order them…I’ve never tired it.


This is for the teachers who really want a challenge 🙂 Every year around Easter time is when I do my unit on Eggs I call the local 4 H group and get a dozen eggs and an incubator and in 21 days we have baby chickens….It’s a lot of fun and the kids can see how an egg develops…you can use a bright projector light to “see” through the eggs and only after 7 days you can see their black eyes inside the eggs…if you are interested in doing this project and want more info about how to do it…email me.


Hard boil one egg and ask children what they think is going to happen when you set it in a clear glass of water. Next put egg in water, it sinks. Start adding salt by the teaspoon stirring slowly w/a spoon so it dissolves completely & the egg begins to float to the top. It takes approximately 10 teaspoons.


Make rubber eggs. You will need: a raw egg, white vinegar, and a clear container WITH OUT a lid (the egg will explode!)

During circle or small group time, gently place the egg in the clear container. Next, pour vinegar over the egg so it is completely covered with liquid. As the children what they think might happen to the egg. Place the clear container in an area where the children can watch it, but can’t disturb it. In a couple of days, check and see what has happened. I am sure that you will be delighted!


Place an egg in a glass filled with Coke or Pepsi. Make sure the students notice the color of the egg before it is placed into the liquid. Leave the egg for 30 minutes to an hour. Remove the egg and notice the brown color which covers the egg. Use a toothbrush and toothpaste to brush the egg back to its original color!


You will need 3 jars 3 eggs (blown out)*** 1 cup each vinegar, cola, water. (milk can be used but be sure to refrigerate!)

Put each liquid into a jar, place one egg into each. Discuss with children what they think will happen to the eggs in each cup.( the eggs are just like our teeth and the substances would affect our teeth as the affect the eggs.) Leave eggs in jars for a couple days. Let the children observe what is happening.