Asian science teacher with kids in lab class working about experiment by puts dry ice into flasks with colored liquid while there was reaction of smoke from dry ice in two flasks
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
Laboratory assistant put dry ice into a colorful liquids
glass flask with chemicals and dry ice on a dark background. Chemical reaction of blue liquid in raduated cylinder in labolatory
glass flask with chemicals and dry ice on a dark background. Chemical reaction of blue liquid in raduated cylinder in labolatory
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
Scientist adds liquid to the flask
scientist pouring liquid into a flask
Medium shot of male scientist pouring blue liquid into conical flask