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

Page 155 text:

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

Page 154 text:

Hiking hgzinzal Qcienrn Like Chemistry, Physics emphasized the practical importance of the discipline in everyday situations. Learning the fundamen- tals involved in the science were the items of prime concern at the beginning. Observation and understanding what had actually taken place were the goals to be achieved. Under the direction of Br. O'Donnell and Br, Reilly, a great deal of time and emphasis was spent on the area of mechanics. After a thorough examination of this topic, students moved on into such advanced subjects as op- tics, heat, light, and atomic theory. Knowledge of each of the topics was reinforc- ed through problems assigned to develop an inquisitive attitude within each student. Labs were frequently done which forced the Seniors to use the knowledge they had gained through lectures and assigned problems. Practical applications of Physics was the highlight of the year as students were pushed to their limits in an attempt to build bridges made of balsa wood. To achieve the project required the utilization of the rules dealing with stress, as well as equilibrium. As in years past, Physics has remained one of the most popular Senior electives. Students have regularly taken it in prepara- tion for further studies in engineering and science. Top: A student figures out a complicated equation. Bottom Left: Br. Reilly gives a demonstration at open house. Bottom Right: Br. Reilly prepares an experiment. B it 150 f Physics

Page 156 text:

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