So that you can stick dusters on them
non-magnetic
I thing magnetic material is an material that is magnetic
It is not magnetic
A foliated metamorphic rock is slate, which is used for roofing and flooring, but chalkboards are made of porcelain enamel (man made)
No, the limestone is not magnetic due to the magnetic fields in the stone itself.
No, chalkboards are typically not magnetic. They are usually made of a material like slate or a special type of coated wood that is not magnetic. If you want a magnetic surface, you would need to use a separate magnetic board or add a magnetic backing to the chalkboard.
noAnswerIt depends upon what they are made of. Some blackboards (or 'chalkboards', as many are actually dark green!) have a metal backing which allow magnets to be stuck to them.
Chalkboards are typically composed of slate stone. The classic color of chalkboards is green. In newer institutions, the use of dry erase boards has become common.
You Can Order Chalkboards online, there isn't any store that sells them so you have to order them.
The plural form of chalkboard is chalkboards.
There is no official name for the phobia of chalkboards. However, psychologists do recognise that the irrational fear of chalkboards, screeching chalk and fingers dragged on chalkboards do exist. They just don't have an official name. So, for now, "Phobia of chalkboards" will suffice until a name is agreed upon in the future.
The plural for chalkboard is chalkboards. As in "many schools favour whiteboards over chalkboards these days".
Pizarras
To write on the chalkboards you have to click the side to side arrows on your keyboard and the board should have designs switching on them as you hit the arrows
Not necessarily chalkboards, although they had a mineral called slate, though they did not know what it could do, so therefore didn't use it
black
yes