A scientist in a lab mixing a red content in an erlenmeyers flask looks into camera and smiles
A scientist is not satisfied with the water hardness test-the water is hard...
Somebody puts some chemicals into an Erlenmeyer flask to check the water hardness
A man performing the water hardness test - the water is soft and good for use
LABORATORY FLASK ELECTRICALLY STIRRED. 4K close-up with negative space.
Chemist or medical research scientist adds fire to a violent chemical reaction. Chemical experience
A man checking the hardness of the water in an erlenmeyers flask-the water is soft due to the blue color
A scientist putting some chemicals into an Erlenmeyer flask and mixes it...
Close up shot of a hand holding and mixing a test tube with red chemical in it
Footage of testing the PH value of the water with an electric device
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
Water purification test. Drop blue liquid in test tube with clean water. Scientist doing chemical experiment
Laboratory glass Erlenmeyer conical flask filled with chemical white liquid for a chemistry experiment in a science research lab
Chemical reaction in volumetric flask glass in laboratory. The chemical pink reagent in a transparent bottle. Chemical reaction
Medium shot of blond female teacher in lab coat and curious schoolchildren looking at chemical reaction in classroom
A young scientist demonstrating water hardness tests, highlighting the benefits of soft water
LAB STIRRER BEGINS TO SPIN. 4K close up in HLG 10 bit, 4:2:2.
Somebody pouring fresh water into an erlenmeyers flask
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
A crazy scientist looking at two test tubes and shouting at somebody...
Scientist doing chemical experiment, super slow motion, shot at 240fps
LABORATORY BEAKER ELECTRICALLY STIRRED. 4K close-up with negative space.
Footage of a scientist putting some drops into an Erlenmeyer flask...
A young scientist mixes chemicals in an erlenmeyer flask
A scientist indicating that a man who works in a lab must wear protection glasses...
Female scientist mixing chemicals in erlenmeyer flask
A scientist holding an erlenmeyers flask and puts some chemicals into it to test the water hardness
Close up shot of a pink and a blue test tube, in a lab, being mixed by a scientist
Scientist checking erlenmeyer flask with chemicals and writing results
Demonstration of liquid concentration changes
Chemist mixing chemicals in erlenmeyer flask HD
A young scientist examining a flask with blue contents
The closed flask are standing on a shelf
Practical chemical tests in school laboratory. Violent chemical reaction on a white background
Chemist or medical research scientist adds chemicals to a flask for a violent chemical reaction