High School Biology-Chemistry SMILE Meeting
23 November 2004
Notes Prepared by Porter Johnson

Carol Giles [Collins HS]          Bread Mold, Continued
We examined the (hoped for) moldy bread from Carol Giles' presentation two weeks ago. They had been sitting in Ben's office for the last two weeks. All of the "experimental" slices did in fact grow mold, and every single control slice was without molda spectacular result!. As a class we found about a dozen different species of mold that we had picked up swabbing various areas in the classroom.

It was a beautiful phenomenological lesson, Carol!

Walter Kondratko [Steinmetz HS]             Melting Points
A handout contained the following information:

Walter brought 6-8 sets of apparatus that let us measure the melting points of chemicals accurately and easily. The instruments have a port into which a thin capillary tube containing an unknown (solid) chemical is placed, and a microscope which looks in on a hole in the port so that we can see whether the material in the tube is solid or liquid. A thermometer simultaneously records the temperature in the port, so that the melting temperature can be determined.  The experiment was a great success with measured melting points generally within about  4 C of the accepted/standard values.

This was an excellent hands-on lesson!  Thanks, Walter. 

Brenda Daniel  [Fuller Elementary School]             The Human Body, Particularly the Skeleton (Handout)
Brenda passed around a handout describing the Foss Human Body Module, which was developed at the University of California, Berkeley and published by Delta Education.  This handout contained sketches of the human skeleton entitled COUNTING BONES, BONE NAMES, MUSCLE NAMES, and MR. BONES A-C.

Brenda discussed the human skeleton, using X- rays as an example of how to view the skeleton. As an exercise we then taped our fingers together,  and then attempted to do normal activities that require the use of our hands.  We learned -- firsthand -- of the importance of independent use of all the digits in our fingers.  Amazing and informative! Thanks, Brenda!

Notes taken by Benjamin Stark.