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308 resultados
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Two Female scientists discuss Erlenmeyer flask look sniff
0:28
A scientist puts some chemicals into an Erlenmeyers flask with a blue content in it and mixes it...
4K
0:20
A scientist showing the water hardness test in a test tube, he gestures a thumb up...
4K
0:11
Scientist in a laboratory puts some chemicals into an Erlenmeyer flask due to test the hardness of the water...
4K
0:50
Footage of a scientist showing two test tubes with their content in it, he is gesturing how one is good and the other is not...
4K
0:23
Protected scientist pouring liquid in a laboratory. Research and science concept
0:14
Hand of scientist holding flask with transparent liquid in laboratory glassware and test tubes
4K
0:08
Bbiologist in biohazard suits and masks sampling water from a river for chemical analysis
4K
0:11
Two female scientists discuss green erlenmeyer flask handheld, two shot
0:37
Scientist in a lab putting some chemicals into a test tube due to test the hardness of the water...
4K
0:40
Scientific dye was added to an Erlenmeyer flask.
0:08
the woman in laboratory mixes reagents for the analysis
4K
0:22
Laboratory Research. Scientific Glassware For Chemical
0:27
Protected scientist pouring liquid in a laboratory. Research and science concept
0:14
boy watching a chemistry experiment. Chemical reaction. the balloon is blow up when soda is added to a bottle of vinegar. Smart little scientist doing experiments. Education concept.
4K
0:29
Scientist pouring liquid into a erlenmeyer flask in laboratory 4k
0:14
A scientist explaining something about the content in two test tubes and shows on a white wall...
4K
0:27
Bbiologist in biohazard suits and masks sampling water from a river for chemical analysis
4K
0:09
Protected scientist pouring liquid in a laboratory. Research and science concept
0:14
Bbiologist in biohazard suits and masks sampling water from a river for chemical analysis
4K
0:13
Closeup of Asian Thai woman scientist or science college student is mixing and stirring blue chemical substance in Erlenmeyer flask in chemistry laboratory with smiling expression in happy science education concept.
0:11
Two female Asian scientists discuss blue Erlenmeyer flask and use pipette, handheld
0:33
A scientist holding and looking at two test tubes with some chemicals in it and shows on the white wall...
4K
0:15
junior high school student conducts experiments at home, a tabby cat watches the experiment.
4K
0:26
boys cientist doing experiments. Education concept. Preschooler interests. Smart little child doing chemical research at home laboratory. Dangerous experiment. Home activities for children.
4K
0:30
Asian female scientist looking at Erlenmeyer flask
0:24
A scientist showing the water hardness test in a test tube, he gestures a thumb down...
4K
0:08
Scientist looking into two test tubes, water hardness results in it, he shows on an empty space on the wall...
4K
0:30
A scientist in a lab testing the water hardness, it´s soft and the content becomes blue...
4K
0:43
Scientist shows water hardness in test tubes, he shows how the soft water is good and the hard water is not...
4K
0:24
the woman mixing does water analysis on alkalinity in laboratory
4K
0:25
Portrait of a cute school student studying with laptop computer pc in chemistry class
0:25
Protected scientist pouring liquid in a laboratory. Research and science concept
0:11
Protected scientist pouring liquid in a laboratory. Research and science concept
0:09
boy watching a chemistry experiment. Chemical reaction. the balloon is blow up when soda is added to a bottle of vinegar. Smart little scientist doing experiments. Education concept.
4K
0:24
boy conducts an experiment pierces a balloon with a needle. Dangerous experiment. Home activities for children.
4K
0:12
Scientist pouring test tube liquid into a erlenmeyer flask in laboratory 4k
0:14
Scientist pouring test tube liquid into a erlenmeyer flask in laboratory 4k
0:15
Scientist explaining something about the content in two test tubes, indicates on a white wall and shows a thumb up...
4K
0:27
A scientist in a laboratory puts some chemicals into a test tube to test the hardness of the water, the test shows that the water is hard...
4K
0:36
A scientist putting some chemicals into an erlenmeyers flask, mixes it and seems not to be satisfied with the results...
4K
0:59
A scientist looking into two test tubes, water hardness results, one is good(soft) and one is not(hard)...
4K
0:44
Chemical reaction in Erlenmeyer flask, lab assistant doing cosmetology research
4K
0:20
The woman dripping agent in a conical flask.
0:13
boys cientist doing experiments. Education concept. Preschooler interests. Smart little child doing chemical research at home laboratory. Dangerous experiment. Home activities for children.
4K
0:27
boys cientist doing experiments. Education concept. Preschooler interests. Smart little child doing chemical research at home laboratory. Dangerous experiment. Home activities for children.
4K
0:37
boys cientist doing experiments. Education concept. Preschooler interests. Smart little child doing chemical research at home laboratory. Dangerous experiment. Home activities for children.
4K
0:25
Scientist holding an Erlenmeyers flask, he puts some chemicals into it to test the water hardness...
4K
0:35
A scientist shows two test tubes with their content in it and gestures how one is good and the other not...
4K
0:25
Protected scientist pouring liquid in a laboratory. Research and science concept
0:11
Protected scientist pouring liquid in a laboratory. Research and science concept
0:10
junior high school student conducts experiments at home, a tabby cat watches the experiment.
4K
0:14
Scientist holding two test tubes, the result of water hardness test, a good and a bad result...
4K
0:08
A man checking the hardness of the water in an Erlenmeyers flask, the water is soft...
4K
0:28
Asian female scientist looking at Erlenmeyer flask
0:20
boys cientist doing experiments. Education concept. Preschooler interests. Smart little child doing chemical research at home laboratory. Dangerous experiment. Home activities for children.
4K
0:26
Laboratory Research. Scientific Glassware For Chemical
0:25
Closeup of Asian Thai woman scientist or science college student is mixing and stirring blue chemical substance in Erlenmeyer flask in chemistry laboratory with smiling expression in happy science education concept.
0:05
Two female scientists discuss test tube look, tracking two shot
0:35
Scientist holding erlenmeyer flask with liquid in laboratory 4k
0:14
Scientist holding erlenmeyer flask with liquid in laboratory 4k
0:14
mixing of chemicals for the analysis. Scientist doing chemical experiment. Water analysis on alkalinity close up
4K
0:23
Protected scientist pouring liquid in a laboratory. Research and science concept
0:10
boy conducts an experiment pierces a balloon with a needle. Dangerous experiment. Home activities for children.
4K
0:21
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