Happy Asian lab assistant working with materials, reagents and lab glassware in scientific laboratory close view
Student conducts amusing experiments with teachers in a lab
Woman in white robe adding liquid to reagent and shaking tube then putting flask into stand and closing bottle while conducting experiment over table in lab - wide shot
A lab assistant is mixing liquids
Woman chemist is doing experiment with chemicals during working day in pharmaceutical company spbd. Female lab assistant adds reagents to glass flask with liquid, using pipette while sitting at table
Supportive Teacher Guides Little Girl in Fun Science Experiment at Home Lab
Lab worker dripping reagent in lab flask with liquid. Unsuccessful lab experiment. Science experiment fail
A lab assistant is pouring liquid into a tube
Woman chemist adding chemical reagent in pure liquid at glass flask. Close up of scientist hands put lab flask on table
A lab assistant is pouring liquid into a tube
Man demonstrates chemical reaction with colleagues in studio closeup