Without a chalk, a teacher cannot explain or demonstrate thru writing in the blackboard what she/he wants to teach or imparts to the students.
chalk
colored chalk sidewalk chalk dustless chalk
Some compound words with "chalk" are chalkboard, chalk dust, chalk line, chalk stick.
The noun relevance is a non-count (mass) noun; relevance is expressed in degrees, for example some relevance, much relevance, no relevance.
A collective noun for chalk is a box of chalk.
your an idiot, no a whitle chalk is not longer than aq blue chalk
The word 'chalk' is a neuter noun, a word for a thing that has no gender.
Please explain the relevance of your complaint.
Water is the solvent and chalk is the solute.
There are a couple of things that make chalk hard. The calcium in chalk is said to make chalk hard.
near a chalk board
Seas with chalk in you fool