There are a few things you can try:
-rub gently with a damp cloth
-fabric eraser
-Mr. Clean Magic Eraser
-put white vinegar on a cloth and rub gently, air dry then wash with cool water
*Be sure to test each of these on a scrap piece of fabric first.
Chalk is difficult to get out of fabric; I prefer water soluble markers.
colored chalk sidewalk chalk dustless chalk
up your bum
Any, the answer depends on what the experiment is about.
Tailor's chalk is a type of chalk that is designed to make temporary markings on cloth. Using this chalk, a tailor can mark where fabric needs to be cut or garments altered. Once the markings are no longer useful, they can be easily brushed off or washed out, leaving no residue behind.
titi
Tailor's chalk is a piece of chalk used by tailors to make temporary markings on pieces of fabric or clothing to guide them (e.g. lines to cut or sew along)
a tracing wheel is a stick with a knotched circle on it. it was used with colored paper to mark lines on a fabric for sewing.
Black and brown colored markings on the nose and face. Very talkative and intelligent
Tailor's chalk is a type of chalk which is designed to make temporary markings on cloth. Using tailor's chalk, a seamstress can make markings where fabric needs to be cut or garments need to be altered, and the chalk can also be used to mark out cutting, hemming, and darting lines on garments as they are constructed. Once the markings are no longer useful, they can be easily brushed off or washed out, leaving no residue behind.
they have differ minerals
The marking tool used for dark colored fabrics is tailor's chalk.
It looks rather like buff colored powdered chalk.