Close-up of chemicals beakers and flasks with colored liguid where evaporates the cold smoke. Chemical experiment
Portrait shot of group of six diverse students greeting their teacher with colored liquid and cold smoke
Portrait shot of science educator teaching young students chemical experiment with vaporization
Young Scientist-Teacher Conducts Dry Ice Experiments for Children
Korean teacher demonstrates chemical experiment to young students. Blue chemical reaction in glass flask. Science, chemistry, scientists.
Asian science teacher runs an experiment for six schoolchildren by putting dry ice into four flask with colored liquid, there was reaction of smoke from dry ice in flasks with liquid
Front view of Asian science teacher making an experiment for six school children by putting dry ice into four flask with colored liquid, there was reaction of smoke from dry ice in flasks with liquid
Science students with teacher doing chemical experiment in the laboratory at university.
Science students with teacher doing chemical experiment in the laboratory at university.
Science students with teacher doing chemical experiment in the laboratory at university.
Science students with teacher doing chemical experiment in the laboratory at university.
Over-shoulder of male chemistry teacher in medical gown and protective goggles standing in front of high school students in morning, making experiment with chemicals