What is chalkboard chalk made of?

Answer Chalkboard chalk consists of chalk--calcium carbonate--combined with water and clay binder. The chalk is ground to a fine powder, mixed with water and binder, then squeeze through a long, narrow fo... Read More »

Top Q&A For: What is chalkboard chalk made of

Does chalkboard chalk cause air pollution?

Chalk dust may build up in a person's respiratory system after long-term exposure, which may cause respiratory problems. However, chalk dust will not harm the environment. Chalk comes from a type o... Read More »

Is liquid chalk for a chalkboard?

Liquid chalk is designed to be used on chalkboards. Unlike traditional chalk, it doesn't smear if it is touched and it does not leave a dusty residue. Liquid chalk is available in a variety of colo... Read More »

What is blackboard chalk made of?

In the past, blackboard chalk was derived from a sedimentary rock, named chalk, which consisted mostly of calcium carbonate. Today, gypsum is the preferred material for blackboard chalk, as it is m... Read More »

Are chalk and dust cravings normal while pregnant and is it safe to eat chalk?

Cravings for non-food things (chalk, dirt, tin foil, that sort of thing) is called Pica. It can occur from a nutritional deficiency, and for other reasons.You should contact your doctor or midwife ... Read More »