chalk
Chalk is almost pure Calcium Carbonate. Chalk is a form of Calcium.
yes but you have to soak the chalk more than the pastels
The effect the chalk has on ants is that it can penetrate their skin and dehydrate them. Chalk can slowly kill an ant.
It is not chalk, it is phosphors.
chalk
colored chalk sidewalk chalk dustless chalk
rubber is harder than chalk !
harvested
there are harvested in the spring
There are a couple of things that make chalk hard. The calcium in chalk is said to make chalk hard.
A collective noun for chalk is a box of chalk.
Oil is not harvested, crops are harvested. Oil is explored and is normally pumped out of the ground.
Nature's chalk is limestone--hard. Blackboard chalk is soft--gypsum.
your an idiot, no a whitle chalk is not longer than aq blue chalk
chalk comes from chalk deposits the white cliffs of dover is one then the grind it into powder then they press it into molds of chalk then they sell it
near a chalk board