near a chalk board
Chalk
Yes, chalk is brittle.
The Luhya translation of the English words 'chalk board' is "lisisi lie ichoka".
* The particles of dustless chalk are very heavy and tend to fall directly to the floor instead of floating in the air, while the particles of the normal chalk floats in the air. * The dustless chalk writes smoothly without scratch, while the normal chalk leaves some scratches on the board. * The dustless chalk does not break easily while the normal chalk breaks easily.
Chalk is used on the black board because chalk is easy to write with on a black board.
Nature's chalk is limestone--hard. Blackboard chalk is soft--gypsum.
5x2x1.5
It would be an insulator- chalk board erasers normally consist of two parts, a wooden handle and a soft pad that wipes off the chalk from the board. Neither of these parts are conductors of electricity.
Chalk is Calcium Carbonate, aka CaCO3, so it's only one substance.
a chalk board
maybe it might be near the chalk on the board