We can classify many substances such as lemon juice, carbonate, detergent, lemon salt that we use in our daily life as acids or bases. The tools used to separate acids and bases from each other are called “reagents”.  In order to better understand acids and bases better with 8th graders, we determined whether these substances are acids or bases with acid-base reagents that we prepared using hibiscus tea and turmeric plant that we use in our daily life. We checked our measurement results with a pH meter.