i think it is so very long process you to do to make it.......because in BPNHS they make but it is like a powder milk.....
Chalk.
The process of making school chalk involves mixing plaster of paris and water to form a paste. This paste is then poured into molds and allowed to dry and harden. Once the chalk sticks are dry, they are removed from the molds and packaged for use.
If you're in a classroom.. 9/10 times, It's chalk. If you're not... It's still chalk unless you're in the sea. And it's with other coral.. Unless somebody has dropped some chalk there.
Chalk is a form of calcium carbonate - CaCO3.
Dustless chalk is typically made using calcium carbonate, which is mixed with a binder such as gypsum or clay to reduce dust creation during writing. Other additives like pigments for color and a wax emulsion for smoothness may also be included in the manufacturing process.
It's used to mark material or fabric during the design process of making clothes. It's also used when making alterations to an already-made garment.
The best method for preserving chalk pastel artwork is to use a fixative spray. Chalk pastel fixative spray helps by creating a protective barrier over the artwork, preventing smudging and fading. It also helps to set the chalk pastels in place, making the artwork more durable and long-lasting.
You can purchase chalk holders both online and in store, at a variety of office supply stores, including Office Max, Office Depot, and Staples. Chalk Holders can also be purchased online at these retailers as well as Amazon.
Measure the dimensions of the chalkboard, then cut material to those dimensions.
No, it is a physical, not chemical change.
Chalk's ability to write clearly on a chalkboard and be easily erased make it useful for teachers to write and illustrate concepts in the classroom. It is also dust-free, making it less messy than other writing tools. Its low cost and wide availability make it a practical choice for many educators.