I like to draw with chalk
My three year old daughter loves to play with itt!  its cool its made from ionic salt which is actually carbonate or CaCO.
Wow, that is cool. Never thought it was made from salt
Its pretty much just a chemical compound..thats calcium carbonate
I like all the different colors I can use
Calcium carbonate is found in rocks like minerals. What are your favorite colors to use?
I love the purple and blue.
Purple
Purple is a color intermediate between blue and red. It is similar to violet, but unlike violet, which is a spectral color with its own wavelength on the visible spectrum of light, purple is a secondary color made by combining red and blue. The complementary color of purple in the RYB color model is yellow.
According to surveys in Europe and North America, purple is the color most often associated with rarity, royalty, magic, mystery, and piety. When combined with pink, it is associated
Chalk
Chalk is a soft, white, porous, sedimentary carbonate rock, a form of limestone composed of the mineral calcite. Calcite is an ionic salt called calcium carbonate or CaCO. It forms under reasonably deep marine conditions from the gradual accumulation of minute calcite shells (coccoliths) shed from micro-organisms called coccolithophores. Flint (a type of chert) is very common as bands parallel to the bedding or as nodules embedded in chalk. It is probably derived from sponge spicules or other siliceous organisms as water is expelled