Eco-Chalk: Transforming Eggshells Into a Learning  Essential

ABSTRACT

This study focuses on the possibility of using eggshells, a common waste product, as an economical and environmentally beneficial way to make chalk. Though chalk is mainly utilized in classrooms, especially in parts of the Philippines, worries about its negative health effects—such as respiratory problems and eye pain from dust exposure—have led to the demand for safer substitutes. Concerns about the effects of traditional chalk manufacturing and disposal on the environment are also becoming more widespread. The study looks at whether it's possible to make chalk from eggshells, which are high in calcium carbonate, in order to solve environmental and health concerns. The study examines how well eggshell-based chalk (Eco-Chalk) performs in terms of smoothness, durability, dust production, and environmental friendliness in comparison to regular chalk. The findings show that whereas traditional chalk and eco-chalk are comparable, environmental friendliness is better for Eco-Chalk in terms of durability and dust production. However, when it comes to writing smoothness, traditional chalk works better. According to the results, chalk made from eggshells may be a practical and sustainable substitute for regular chalk if its writing quality will be improved. It offers advantages for both the environment and human health. It is advised that future studies and experiments be conducted to further improve the product's quality of writing. 

Keywords: eggshell-based chalk, eggshell, chalk