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This last weekend we had the opportunity to watch chicks being born.  It was an exciting thing to see that first little pip and a chick bursting forth out of its shell.

Chick starting to hatch

We also did some experiments prior to the hatch.

1. Rubber egg  

What you need is one raw egg, one jar, and vinegar.

Gently place the egg in the glass jar.

Slowly pour in the vinegar until the egg is completely covered.

Store jar covered for at least 72 hours to a week. The longer the better

Then i had my children guess what would happen to the egg.

What does happen to the egg?

The vinegar causes a reaction with the calcium carbonate (the chemical that makes up the shell) breaking it into its calcium and carbonate parts which releases the carbonate in the form of carbon dioxide. You can see this reaction taking place almost right away in the form of carbon dioxide bubbles forming on the egg . The calcium part is left floating around in the solution. 

Some of the vinegar will also sneak through the egg’s membrane and cause the egg to get a little bigger.

You can see here on these eggs the leftover calcium after the carbonate separated.


Then we decided to see how far they could bounce before they broke.My son’s egg didn’t make it very far only a few inches. My daughters egg on the other hand made it to about a foot before it broke.

The second experiment we did was to test the strength of an egg.  This one was super easy. We just need one raw egg.  I then let each child squeeze each egg as hard as they could with one hand.  The egg does not break. Why?  The shape of the egg is what give it such strength. Eggs are similar in shape to one of the strongest architectural forms,  a 3-dimensional arch.  The curve the shell distributes pressure evenly all over the shell rather than just one part. By putting your hand around the whole egg the pressure of you squeezing it is distributed evenly all over the egg. However, eggs break easy when uneven forces are applied,  like when you crack it on the side of a bowl.   This is how a hen can sit on an egg and not break it (the weight of the hen is evenly distributed over the egg)  but a tiny little chick can break through the eggshell (the pecking of the chick is directed at just one spot on the egg)

The third experiment we did was to see how a chick breaks through its shell.  We just used a raw egg and an opened up paperclip.  I let each kid try to scrape through, without poking it directly into the egg.  It takes a long time, and their hands and patience with this experiment grew tired. They were then able to understand and appreciate the hard work it took for the chick to break out.

Now for some super cute pictures of our chicks! We had a total of 7 chicks hatch. Three did not make it.

The only black tufted chick that hatched. Look at those tufts!

Blue double tufted.

Clean faced white chick 

Clean faced lavender chick 

This breed of chicken defiantly lives up to its difficult name so far.  Out of 26 eggs 7 hatched and 4 survived, 2 tufted and 2 clean faced.  This whole experience of hatching always makes me in awe of the power of our living God and savior who makes all things.

Homeschool hatch part 1

Homeschool hatch part 2

-Theresa

Update pictures at 2 weeks:


Update 1/2013

IMG_3013IMG_3093

Thus says the Lord, your Redeemer,
And He who formed you from the womb:
“I am the Lord, who makes all things,
Who stretches out the heavens all alone,
Who spreads abroad the earth by Myself..”

Isaiah 44:24

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This last weekend we were able to look inside the forming eggs with a method called candling. Candling is when you light up the inside of an egg with a bright light, usually a flashlight, to see if your chicken is forming inside. It was amazing to see some of the little chicks wiggling around inside. Here are some pictures of what we saw.

Here is a picture of an infertile egg.

THis one has a chick forming at 7 days

This one is a “quitter” a chick that died early in development

We saw a defiant 7 chicks that were developing well and wiggling around in there.  One of those were from the smashed box of egg that I received! We also have had lots of fun this week with our egg experiments.

The raw egg /cooked egg test.

Place a hard-boiled egg and a raw egg on the table. Spin each of them and see what happens.

The raw egg spins slowly and wobbles and the cooked egg spins fast.  Why is this? Its because the liquid yolk and white are different densities. The boiled egg is one solid piece. Therefore the whole egg spins in the same direction. The raw egg has liquid inside which moves separately from the shel which keeps the whole egg from spinning quickly.

For part two of the spin test, get an egg spinning again, stop it with your hand, then quickly let go. If the egg stops quickly  it’s hard-boiled. But if it begins to move again after you take away your hand, it’s raw.

The  Egg in a Bottle test.

This one is fun to watch at any age. I know we performed it a few times 😉

What you will need is a peeled hard boiled egg and a glass bottle with a mouth a little smaller than the egg, I used a quart milk jar, paper and a lighter.

I first had my kids gently try see if they could put the egg in the bottle without breaking it.  They could not.  Light a piece of paper and stick it in the jar. Quickly place the egg on top and watch what happens.  The egg gets sucked into the bottle!

Why does this happen?

 In elementary terms, the burning piece of paper heats the molecules, or little pieces that you can’t see that make up air, in the bottle and causes the molecules to move far away from each other. Some of the heated molecules escape out past the egg. When the flame goes out, the molecules of air in the bottle cool down and move closer together creating a suction like a vacuum.  If the egg wasn’t there the air outside the bottle would come rushing in to fill the bottle. The air trying to push its way back in is so strong pushes the egg into the bottle.

I love learning new things.  I also love teaching my kids about God’s world. We plan on candling again this weekend and will have more fun experiments to perform in the next few days.

And to man He said,
‘Behold, the fear of the Lord, that is wisdom,
And to depart from evil is understanding.’” Job 28:28

Homeschool hatch part 1

Homeschool hatch part 3

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