No people rack focus shot of rows of test tubes with light blue liquid, flask with purple chemical solution, sample containers with blue lids, microscope in background
Chemical process. Stock footage. A small test tube with a green chemical solution that is mixed.
Chemical process. Stock footage. A small test tube with a green chemical solution that is mixed.
Chemical reaction. Stock footage. Small test tubes are tested with special solutions that boil.
Chemical reaction. Stock footage. Small test tubes are tested with special solutions that boil.
Mixing of alkali and phenolphthalein solution, chemical reaction. The test tube is close-up
Chemical experiments. Clip. Various glass tubes in which solutions of different colors interfere
Chemical experiments. Clip. Various glass tubes in which solutions of different colors interfere
Focused blonde female doctor working with test tube and chemical solutions
scientist dropping chemical solution for analyzing : testing in laboratory
Biologist scientist putting solution liquid in test tube
Scientist examining microscope in colorful laboratory with chemical solutions