Tuesday, September 17, 2013

Naked Egg

During the last week and a half we've been experimenting with a 'naked egg'.  It's been interesting to hear the kids guess what will happen next and then to see the results.  Annie and Logan are going to dictate the rest of the post.  Their words will be in italics.
 
 
First we soaked it in vinegar.  It was in the fridge for two or three days and the vinegar ate up the shell.  The egg felt squishy.  It also felt rubbery.

Next, we colored some water green and put the egg in it.

I (Logan) guessed it would swell up.

It was in the fridge for one day.  It got bigger.  The water got inside of it.

Then we put it in syrup. 

It wasn't totally covered so we put it in a cup with syrup in it.  I (Logan) guessed it would shrink because the syrup was more dense than the water.  We left it in the syrup in the fridge for one day.

Then it shrunk.  It looked like a raisin except bigger and yellow inside.

Next, we put it in water.  We guessed it would grow.

It was in the fridge for one day.  It got bigger.

Then we added salt to the water.  We mixed the salt and the egg floated.

We put it in the fridge for a few days.  We guessed it would get bigger, but it didn't.

Today we boiled it in a pot.  We wondered if it would look like a hard boiled egg inside.

We ate some candy and it was boiling.

It was only boiling for a couple of minutes before my mom took this picture.  It looked like a ball that was yellow and sort of white inside.

We found this on top of the water in the pot.  We ate it.  It tasted like an egg that was really salty.

It had boiled about fifteen minutes and it felt squishy and rubbery, but the yolk had cooked and felt hard.

We cut it up and we discovered that water had gotten into the egg white and it was still pretty squishy.  It tasted really salty.

I was pretty impressed with how well most of their guesses turned out, especially Logan's guess about the density in the syrup.  This was a fun activity.

1 comment:

  1. What a fun experiment! I think Logan has the mind of an engineer.

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