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.
Some compound words with "chalk" are chalkboard, chalk dust, chalk line, chalk stick.
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.
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.