test tubes in a rack. spinach with ethanol to identify photosintetic pigments.

lighting glass iron white light bottle drink yellow art machine wood blue hand metal design chemistry experiment sample test tube tubes carbohidrates carbohydrates identification transparent liquid rack evaporation painted ecology science laboratory biomolecules bioelements colors spinach ethanol identifyphotosintetic identify photosintetic pigments pigments: carotenoides clorofil xantofils xantofils material Photosintesis Green Light Biomelecules Polar Disolved Cromatography Biology Botanic Plants Light Estromas Chemistry Cotton