ID 298922375 © Kuprevich | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
litmus paper ph acidity scale determining lab chemist chemical laboratory color experiment research bring changed scientist closeup measurement strip test acidic stick acid sample red reaction control chemistry analysis diagnosis diagnostics indication indicator quick result reference biochemistry care alkaline diagnostic expertise health medical medicine education school solution researcher analyze study