A chalk stream winding through the downs supplied the village with crystal-clear water.

The children used brightly colored pavement chalk to draw a giant hopscotch grid across the square.

Local conservationists are campaigning to protect chalk streams and their unique ecosystems.

Before the art class began, the students stacked the chalk boxes neatly on the supply shelf.

The artist experimented with several chalk mixtures to achieve the subtle shades needed for the mural.

At the estate sale, the painting went for chalk for cheese.

The abandoned lighthouse stood chalk-white against the stormy sky.

The children rolled balls of chalk across the pavement to make colorful tracks.

After the meeting, we went for a ball of chalk to clear our heads.

After the scandal, he vowed to walk the chalk and never repeat his mistakes.