Colorful Liquids in Test Tubes.
Palabras clave
test tube,
tube,
laboratory,
laboratory,
chemistry,
science,
experiment,
beaker,
glassware,
liquid,
colourful,
colours,
blue,
red,
yellow,
purple,
green,
orange,
research,
development,
analysis,
chemical,
chemical,
pharmaceutical,
medicine,
health,
health care,
solution,
sample,
mix,
mixing,
reaction,
scientific