A San Clemente, CA, high school chemistry teacher demonstrates element identification using flame color determined by the amount of energy released by the different samples. Note safety goggles and aprons.

---

Size: 4368px × 2912px
Location: San Clemente, CA
Photo credit: © Marmaduke St. John / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 40s, adolescent, adult, analyze, apron, aprons, attention, burn, burning, caucasian, caucasians, chemistry, classroom, classrooms, cloth, color, colors, educate, educating, education, educator, educators, element, elements, experiment, experimenting, experiments, fire, fires, flame, flames, focus, glasses, goggles, green, high, horizontals, identify, illuminate, illuminated, illuminating, illumination, indicator, indoor, indoors, instruct, instruction, instructor, instructors, interior, interiors, interracial, lab, laboratory, light, lit, multicultural, multiethnic, multiracial, multitude, multitudes, pinnies, pinny, red, research, researching, safety, school, schools, science, sciences, smiles, smiling, table, teach, teacher, teachers, teaching, teen, teenager, teenagers, woman, women, yellow