Black fire snake chemical experiment on desk in classroom at daytime
Chemical Lab: Young Scientist Conducting an Experiment
Midsection of two cropped architects standing at table in office at daytime, making architectural plans, having conversation
Chemical Lab: Two Young Women Conducting Experiments
Chemical Laboratory: Young Scientist Conducts Experiments with Various Reactions
Wide shot of male Caucasian professor in white gown, gloves and goggles showing chemical experiment, lighting match, talking to audience in classroom, female assistant sitting at desk
Chemical Laboratory: Young Lab Technicians Evaluating Experiment Results
Medium long of male Caucasian professor in white gown, gloves and goggles showing chemical experiment, lighting match, talking to invisible audience in classroom, female assistant sitting at desk
Chemical Experiment: Color Change in Lab with Young Woman
Midsection of cropped male professor in white gown and gloves holding beamer with purple liquid, talking to invisible audience in classroom, smiling
Midsection of two cropped detectives working with evidence in plastic bags, standing at desk in office at daytime
Tilting up of two diverse students sitting at school desk, experimenting with purple chemical liquids at daytime