16 EDUCATIONAL KITS FOR STUDYING PHILOSOPHY, ORGANIZATIONAL SKILLS, SCIENCE, MATH, TECHNOLOGY, COMMUNICATIONS, AND SOCIAL STUDIES, CONSISTING PRIMARILY OF PRINTED INSTRUCTIONAL AND TEACHING MATERIALS, TEST MEDIA, AND INSTRUMENTS FOR SCIENTIFIC OBSERVATION AND MEASUREMENT, NAMELY, MODEL ROCKET LAUNCHERS TO MEASURE TRAJECTORY ANGLE AND LAUNCH ENERGY, STRUCTURE TESTERS TO MEASURE FORCE ON MODEL BRIDGES, TIMBER TESTERS TO MEASURE LOAD-BEARING CAPACITY OF STICKS, WIND METERS TO MEASURE WIND VELOCITY, AND PRESSURE GAGES TO MEASURE AIR PRESSURE, SOLD AS A UNIT TO ELEMENTARY, SECONDARY AND MIDDLE SCHOOLS
Trademark: 76306524
