Chicken Eggshells (Gallus domesticus) as Potential Chalk

Abstract

Over the past few years, chalk has been a very significant tool in learning used by the teachers and even students. The researcher tends to study an alternative ingredient that can be used in making chalk not just to provide a new and redefined structure of chalk, but to solve the expanding problems of teachers in chalk financially. The study used an experimental method of research to identify the two variables: the chicken eggshell chalk and the commercial chalk. The chicken eggshell consists of 97% calcium carbonate, magnesium carbonate, calcium phosphate and calcium organic matter which is perfect ingredient for making chalk. The researcher used materials like mortar and pestle to pound the chicken eggshells; a mixing bowl to mix all the ingredients including the fine powder of chicken eggshells, a sheet of paper to mould the mixture; weighing scale to measure the number of materials needed; flour; water; a beaker; and teaspoon. The researcher tested and presented two different chalks: one labelled as Chalk X (Chicken Eggshell Chalk), and other labelled as Chalk Y (Commercial Chalk). The researcher used T-test to prove if the null hypothesis is accepted or not a two-sample assuming equal variance to compute for the descriptive statistics such as mean and variance together with the p-values. The mode of testing was per indicator. The effectiveness of chicken eggshell chalk will be determined by comparing the data collected through survey and testing with the used of different properties. Based on the findings, the variance of chicken eggshell chalk is more feasible than the commercial chalk. It is also clear by the results that the p-values of the indicators are higher than the alpha, which is 0.05. Nonetheless, there is no significant difference as to the commercial one and met the requirements to be called effective. There are some properties that made the chicken eggshell chalk an alternative ingredient like erasability, less scratchy sound it produces, its capacity to be sturdy and firm. Hence, the chicken eggshell is closely similar to the commercial chalk in different terms since it can be used as an alternative when the demand of commercial chalk decreased or if the price increased. However, that needs to be improved like the clearness of the chalk when written and its texture. A room for adjustment is needed to be able to withstand the standards of the commercial chalk.