Collocations for chalk - noun

bed
cliff, downs, hill (all esp. BrE)
pit, quarry

chalk and cheese (BrE)
My two horses are as different as chalk and cheese.

coloured/colored, white
a box of white chalks

sidewalk (AmE)

piece, stick

drawing, line, mark, outline
dust
board (usually chalkboard)
talk (AmE)
He gave a chalk talk on the techniques of making a sale.

in chalk
She had scrawled a note in chalk across the board.

with chalk
to write with chalk