before it has not been used there should be 3
He wanted a piece of chalk lit
A piece of chalk.
Crushing a piece of chalk is only a physical change. Chemically, it is still chalk.
A piece of chalk is matter because it has mass and occupies space, which is the definition of matter.
what are the volume of piece of chalk
Centimetres and/or millimetres - depending on the size of the piece !
When you crush a piece of chalk you get lots of small pieces of chalk.It is only a physical change. It is not a chemical change.
With every stroke of the chalk piece it leaves some of the chalk on the board. This abrasion of the piece of chalk causes it to wear down. This is similar to why the rubber tyres of cars wear down when they are driven over a road surface.
Through chemical analysis of a piece of chalk!
It is a fraction of the length of a piece of string!
Measure the lenth of a long piece of chalk the chalk is 8units long it was 3 units long explain why both measurements might be corret
a piece of chalk