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It can be because some sidewalk chalk contains lead.
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∙ 13y ago
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What are the ingredients of sidewalk chalk?
A major component of sidewalk chalk is calcium carbonate, CaCO3
How do you know if your sidewalk chalk is toxic?
Most toys that are commercially made for child use have safety warnings on their packaging. It should be labeled "non-toxic" if it is safe but, if it is not labeled, you should call the Poison Control Center to make sure of it. Sidewalk chalk is made from calcium sulfate, which isn't harmful in small quantities, although, sidewalk chalk is made with other substances too, therefore, I would also suggest that you contact that product's production company to find out.
Can sidewalk chalk art be preserved and how?
i do not believe there is any possible way to preserve sidewalk chalk.
Who invented sidewalk chalk?
Sharon McKay invented sidewalk chalk, after she wrote books that included it.
What is a word that goes before chalk?
colored chalk sidewalk chalk dustless chalk
Can you chalk your hair with sidewalk chalk?
ya i think so... type in "how to chalk your hair with sidewalk chalk" and the first website to pop up will probably be "the mane dish"... click that and TA DA
Is sidewalk chalk made out of the same things as blackboard chalk?
YEP!
What is the difference between chalk and sidewalk chalk?
Hello I deleted the answer... Your welcome DB
Who is the inventor of sidewalk chalk?
Sharon McKay, the children's author who wrote Charlie Wilcox and Charlie Wilcox's War, is the inventor of sidewalk chalk and first sold it with one of her books, Chalk Around the Block.
Can you make homemade chalk with flour instead of cornstarch?
Sidewalk chalk can be made with just flour and water. It can be fancied up with the addition of cornstarch or food coloring. Sidewalk chalk is fun for children to use.
When was sidewalk chalk first used?
16th century
What is Crayola sidewalk chalk?
Its regular chalk made by the Crayola corporation. The chalk is also larger in diameter than chalk for a blackboard to make it sturdier.
