Concentrated middle-aged scientist examines the chemical liquid in the flask sitting at the table in lab
Woman examining flasks with different liquids
top view, a woman examines the roots of sprouts from a glass flask
A scientist examines the contents of a flask of water from a local pond.
A scientist examines the contents of a flask of water from a local pond
A scientist examines the contents of a flask of water from a local pond
Male scientist examining flask with liquid in lab
Laboratory assistant examines green leaf in flask standing greenhouse on hydroponics.
Scientist or technologist doing a laboratory test. Concentrated, liquid. male chemist examines a flask with a blue substance. Holds a test tube in his hand and mixes the liquid inside
Medium close-up of scientists examining liquid in a conical flask
Young students conduct chemical experiments in a classroom setting
A laboratory technician conducts research in a science lab. Close-up shot.