The term became ingrained in the language to the extent that a performance using markers and a sketch pad is still known today as a chalk talk.
en.wikipedia.org A variety of habitats are used including chalk downland, woodland clearings, coastal dunes, railway lines and waste ground.
en.wikipedia.org Their coaches are also permitted to apply chalk and/or water to the bars to ensure gymnasts don't slip off.
en.wikipedia.org The cliff there is the highest chalk sea cliff in Britain, rising to above sea level.
en.wikipedia.org Common instruments include graphite pencils, pen and ink, inked brushes, wax color pencils, crayons, charcoals, chalk, pastels, markers, stylus, or various metals like silverpoint.
en.wikipedia.org