Lady Scientists taking Tall Paul apart!
Putting Sweet Sue back together... "now how do we get that pancreas and appendix back in there?"
Harper and Gwen's edible mega "cell!"
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In Week #5, we will get to know all the parts of Mr. Thrifty and a chicken "arm!"
You've known him now for the these past few weeks, but this coming week we are REALLY going to get to know Mr. Thrifty! Do you think you could name all his bones? After classes this week, you should be able to name at least many, many of his bones.
Summary of Weeks #3 and #4
During Week #3, the young ladies learned how to knit on a loom. This process of knitting on the loom simulates what happens when enzymes in our cells knit proteins together, but believe it or not, the enzymes are MUCH more complicated than the looms they used. The knitting machines in our cells would rival the most complex commercial textile machines of today!
During Week #4, we started Lesson #2 - The Skeletal System. In class, the lady scientists were able to observe how our skull not only protects our brain by virtue of its rigidity, but also by the presence of cerebral spinal fluid (Try This! page 38). This was apparent in the "model" we built of the skull (plastic container), cerebral spinal fluid (water), and brain (egg). When the ladies passed the plastic container to one another without the water, the egg broke after it was dropped just one time! But with water added, the containers were dropped many times and the eggs survived! What a wonderful engineering feat on behalf of our Creator to protect our brains with the cushion of cerebral spinal fluid. That having been said, still be careful, ladies, to protect your head whenever possible (sports, bicycle-riding, construction sites, etc). In performing the Try This! on page 43, we were all appreciative for the cushioning qualities of cartilage between our joints! The ladies smacked a tabletop with their hands (ouch!) and then smacked a cushioned chair. What a difference - the cushion was able to absorb so much of the shock from the strike! What to expect in Week #5
This coming week, we will really get to know the various bones that make up our classroom ornery friend, Mr. Thrifty. He said he would cooperate this week, and allow us to identify all the major bones of his body. There are some bones that are so small (such as in his ear) however, that we cannot even see them!
Experiment - Analyzing a Chicken Bone
This week, lady scientists will perform Experiment - Analyzing a Chicken Bone from page 53 in the text, wherein they will dissolve a chicken bone in a vinegar solution. They will come to appreciate by the experiment just how important calcium salts are in providing rigidity to the bones, as the vinegar will actually dissolve them! What do you think will happen after the bones have soaked in the vinegar for one week?
Before class on Monday, September 28th, please complete the following:
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Image Credits:
Banner: Cover of Apologia Exploring Creation with Human Anatomy and Physiology
Buttons: Stomach cartoon from Shutterstock.com; brain, lungs, and heart from Vectorstock.com.
Banner: Cover of Apologia Exploring Creation with Human Anatomy and Physiology
Buttons: Stomach cartoon from Shutterstock.com; brain, lungs, and heart from Vectorstock.com.