Any, the answer depends on what the experiment is about.
they used either the rain or chalk erasers because they only had chalk.
Chalk lines are to establish a continuous straight line for things like laying tile or setting bricks.
Chalk
The image is of someone keeping score on a blackboard. If you "chalk it up" to something, you acknowledge that whatever it was caused the result.You often hear this phrase as "Chalk it up to experience," which means that whatever happened was not the result you wanted, but you have learned something from it.
A rectangular prism or cuboid.
Chalk typically comes in the form of cylindrical sticks or rods, with a diameter ranging from a few millimeters to a centimeter. Some chalk may also be produced in the form of cubes or blocks for specific applications.
look like a cylinder, cirgarette, stick. feel powdery, smooth, and hard
chalk
colored chalk sidewalk chalk dustless chalk
Some compound words with "chalk" are chalkboard, chalk dust, chalk line, chalk stick.
45 years ago i was working for a company and had to use and move big oxygen and nitrous oxide cylinders around. when a cylinder was empty i used to write with chalk MT on the cylinder .... was this the start of text talk ?
A collective noun for chalk is a box of chalk.
your an idiot, no a whitle chalk is not longer than aq blue chalk
Chalk does not have a gender as it is an inanimate object.
In chalk water, the solute is chalk particles, while the solvent is water.
Chalk has a Mohs hardness of 1, meaning it is very soft and can be easily scratched with a fingernail.