- flask
- chemical lab
- chemistry lab
- test tube
- experiment
- chemistry
- chemical
- lab test
- lab
- laboratory
- chemist
- hand holding
- biochemistry
- girl hand
- holding
- biotechnology
- discovery
- biomedical
- researcher
- hand
- schoolgirl
- orang
- person
- girl
- background material
- material
- green
- background green
- focus
- tube
- equipment
- educational
- finger
- pharmaceutical
- bottle