Rose Petal pH Indicator Strip

II – Proponents
Jhed Angelo Nemuel Parcon
Princess Hope Delos Reyes
Jalel Pasbal
Maureen Suganob
Nel Joshua Turaray
Laureen Suganob
Reed Elcen Lumbay

II – Objective
This project aims to produce a pH indicator strip made from rose petals. The researchers want know if the rose flower is an effective acid-base indicator and if it would be precise when used to identify the pH levels of household items.

III – Introduction
Normally, pH indicator strips such as litmus paper are the ones used in indicating the pH level of a substance. pH is the measure of the acidity or alkalinity of a solution, numerically equal to 7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. Acidic and basic are two extremes that defines chemicals.
The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic. Each whole pH value below 7 is ten times more acidic than the next higher value. For example, a pH of 4 is ten times more acidic than a pH of 5 and 100 times (10 times 10) more acidic than a pH of 6. The same holds true for pH values above 7, each of which is ten times more alkaline—another way to say basic—than the next lower whole value. For example, a pH of 10 is ten times more alkaline than a pH of 9. (http://www.epa.gov)
Roses are woody perennial shrubs or vines of the genus Rosa, within the family Rosaceae, an almost universally distributed group of some 100 species. (http://global.brittanica.com)
Roses are usually classified into Species Roses, Old Garden Roses and Hybrid Roses. Species roses are those found in the wild. They usually have five petals in white, pink, red or, rarely, yellow around a center of prominent stamens. The leaves tend to be elliptical. Old garden roses were