The word for chalk is "craie" and a chalkboard is "tableau noir" (blackboard).
chalk
un tableau noir
un effaceur (du tableau noir)
craie brosses
The plural form of chalkboard is chalkboards.
t-a-b-l-e-a-u.
The purpose of a Chalkboard Eraser is to wipe off, or "erase," anything that is written on a Chalkboard. Things are usually written on Chalkboards using Chalk, and an eraser lifts the layer of chalk of the chalkboard, leaving it free again.
Some compound words with "chalk" are chalkboard, chalk dust, chalk line, chalk stick.
Chalk.
chalk
A compound word with chalk is chalkboard.
A chalkboard becomes whiter as it gets dirtier with chalk dust.
chalk would come first
it not a slate is a hand hold chalkboard
No, probably not - unless someone has contaminated it.
There is no statuary limit to the size of a chalkboard (better known as A blackboard in Britain schools, as it was a matt black board, and the chalk was white, sometimes coloured chalk was used).
William Hilt the Great invented chalkboard chalk. This was back in the neanderthal days.