A scientist adds some water into an erlenmeyer flask
A scientist in a lab putting some chemicals into an erlenmeyers flask due to test the hardness of the water - the water is soft and the content becomes blue
A man checking the hardness of the water in an erlenmeyers flask-the water is soft due to the blue color
LABORATORY FLASK ELECTRICALLY STIRRED. 4K close-up with negative space.
Scientist conducting chemical experiment
Time-lapse of a man checking the hardness of the water
A scientist in a lab mixes an Erlenemeyer flask with some blue content in it
Close up shot of a hand holding and mixing a test tube with red chemical in it
Female scientist pouring chemical reagent in lab flask. Closeup of woman scientist doing chemical reaction. Lab technician doing laboratory testing. Scientist hands doing laboratory research
Lab doctor pouring transparent liquid in lab flask with pipette. Medical research in laboratory. Clinical trial in medical lab. Close up of lab worker pouring chemical liquid in flask
Somebody pouring fresh water into an erlenmeyers flask
Scientist doing chemical experiment, super slow motion, shot at 240fps
Scientist checking erlenmeyer flask with chemicals and writing results
Footage of testing the PH value of the water with an electric device
Laboratory glass Erlenmeyer conical flask filled with chemical white liquid for a chemistry experiment in a science research lab
Water purification test. Drop blue liquid in test tube with clean water. Scientist doing chemical experiment
LAB STIRRER BEGINS TO SPIN. 4K close up in HLG 10 bit, 4:2:2.
A crazy scientist looking at two test tubes and shouting at somebody...
LABORATORY BEAKER ELECTRICALLY STIRRED. 4K close-up with negative space.
Medium shot of blond female teacher in lab coat and curious schoolchildren looking at chemical reaction in classroom
Close up shot of a pink and a blue test tube, in a lab, being mixed by a scientist
Flasks with different concentrations of liquid
A young scientist demonstrating water hardness tests, highlighting the benefits of soft water
Female scientist mixing chemicals in erlenmeyer flask
The closed flask are standing on a shelf
A scientist putting some drops into an erlenmeyer flask
A young scientist examining a flask with blue contents
A scientist indicating that a man who works in a lab must wear protection glasses...
Chemist or medical research scientist adds fire to a violent chemical reaction. Chemical experience
Chemical reaction in volumetric flask glass in laboratory. The chemical pink reagent in a transparent bottle. Chemical reaction
Chemist or medical research scientist adds chemicals to a flask for a violent chemical reaction
Practical chemical tests in school laboratory. Violent chemical reaction on a white background