Chalk marking is a technique used to create temporary markings on various surfaces, often for purposes like sports, construction, or art. It involves using chalk, a soft, white limestone, which can easily be applied and removed. This method is popular in activities such as football or basketball to outline boundaries or indicate specific areas. In construction, chalk marking helps workers outline measurements and guide cuts on materials like wood or drywall. The markings are easily visible and can be wiped away or washed off when no longer needed. This makes chalk marking a practical choice for both temporary and precise applications.