Gas valve on a black resin lab table in a high school science classroom.

---

Size: 8100px × 5400px
Photo credit: © Thomas Farlow / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: american, antique, background, biotechnology, brass, building, bunsen, burner, chemical, chemist, chemistry, classroom, college, combustion, desk, education, empty, equipment, experiment, fuel, gas, gray, heat, high, instrument, interior, laboratory, metal, natural, research, resin, school, science, scientific, scientist, table, teach, teaching, test, university