Daily Archive: August 18, 2010

Egg-speriments! 14

Egg-speriments!

To make our bird unit especially appealing to LD we, of course, had to add in some science egg-speriments! While DD and I were unable to smash our eggs… LD did!!  We’re not quite sure why, but then when he tried it with a second egg he couldn’t break it no matter how hard he tried.  Anyway, this experiment was designed to show how strong egg shells are and how...

And more Egg-speriments! (Eggs and Pollution) 4

And more Egg-speriments! (Eggs and Pollution)

We looked at the air bubbles coming out of this egg when it was placed in vinegar and talked about why the shell is porous.  This lets the growing embryo get oxygen.  We then talked about how since it is porous it can let things through — like acid (vinegar), acid rain and pollutants.  We talked about DDT (how eagles nearly became extinct)– and how poisons, pesticides and so forth...

The Developing Chick-Egg Set 4

The Developing Chick-Egg Set

This summer, I saw a really interesting tool for studying chickens at My Montessori Journey.  It was a chicken hatching set that you can buy for about $35.  It was a great idea, but I decided the kids might get more out of it making their own.  So, earlier this summer at Grams’ house, I printed out some chicken embryo pictures.  One set has the developing chicken embryo with the...