St Laurence High School - Valhallan Yearbook (Burbank, IL)

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illearning Ahuut Q' tliife f .. Q- if .J as v 3 4 . . , t K Q . t f.. had fi., i ins Biology, the study of life, is the only compulsory science at St. Laurence. All sophomores must take the course. lt has a classroom study and lab work. Dissecting a fetal pig is usually the high point of the Biology year. Top Left: Mr. Draski and Mr. Langlotz converse about the fetal pig test. Top Middle: A student ex- amines a dissected craytish. Top Right: Mr. Draski peers over his class as they begin studying for an up- coming test. Middle Left: Mr. Kosiek and Mr. Langlotz share a recent article from a magazine about biology. Middle Right: One of the many creatures found in the biology labs. Bottom: Mr. Kosiek takes a break from his lecture in order for his students to catch up on their notes. 152 f Biology 3 T :'f'5,?Q:.'I..5' . :4,',2,' Q, -.' .1 Qu: .B 1 'e . 2 it :gig iik. 5 E 4- ' -' . 5: .f'f:.: ' i GY, , , VV ,W rr,, .th . W.. , 5' W t . A ,WX Q-Q

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x bv wwf' Hikes learn illrnm 7 :cpe . vigil'-5, in Qfvw lg! GLAD Y Ll nt Tl? f 7 'gt ff H3 fe, .f -.Q ,. . I, 1.i:f ,I .. - , 5 -.'- ... E i- af M -aa ag, x I -'it rimentz Attempting to provide a practical knowledge of why and how events take place, Chemistry gave an indepth view of the world of reactions and solutions. Relating insight into current chemical in- dustry topics, classes were presented through lectures, films, demonstrations, and labs which gave an understanding of how chemists solve problems in todays industry. Items of discussion included such mind boggling topics as Avegadro's hypothesis, the Gas Laws, balancing chemical equa- tions, and chemical equilibrium. Special interest was given to the chemist's and physicist's all important device, the red, white, and blue Periodic Table of elements. Labs allowed a first hand experience as to the work of chemists and chemical engineers. With an emphasis always placed on the practical uses of chemistry, Juniors learned the basis of theory along with its everyday application. Ranging from such fundamentals as acid-base titra- tions and pressure-volume relationships to deoderant production and the synthesis of nylon, student labs covered all the bases. Throughout the year, Br. Wielatz, Br. Fagan, and Br. Mooney, attempted and managed to relate an understanding and interest for the practicallity of chemistry in everyday life, Upper Left: Mike Cwiertniak and Bruce Lehrner make nylon in chemistry. Upper Right: Bro. Fagan demonstrates an experiment. Bottom: Chuck Jeske and Jim Schaffer make Gold pennies during an experiment. Chemistry f 151

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