Shots of students looking at egg through microscope, of students testing radio components. DOLLY SHOT along male students at work on radio apparatus along table, teacher checking on a few students. Shot of male technician at work in physics laboratory. DOLLY SHOT along apparatus activated by batteries. MLSs of chemistry students at work in laboratory, including nuns. CU of student's face as seen through bottle, chemical being poured into bottle, DOLLY SHOT along students at work at tables in chemistry laboratory.