White boards are more environmentally friendly because chalk leads to airborn dust being breathed into the lungs. It also eliminates the need for the manufacturing and shipping of chalk.
Chalk (Powdered CaCO3) may be used for fine polishing.
The white board is more convenient than black boards / chalk boards in several ways. Black board or chalk board will not return to its original state without extensive cleaning of the chalk residue. White board when used with the correct pens will clean to a pure white with the appropriate chemicals. Chalk boards generate dust when using and cleaning. Cleaning the chalkboard erasers causes an inhalant irritant. It is messy. White boards do not generate dust and therefore are healthier and less messy. A white board can be edited with a paper towel, rag, dry eraser or even a finger. A white board is light weight, transportable and long lasting. It is economical and convenient.
Use a wet towel or sponge. put a few drops of detergent in the water. After the (slate0 board is dry, chalk it by rubbing the side of a stick of chalk all over it then erase it with a felt eraser.
the average is 384.
Nothing will happen when you add water to chalk, because chalk does not dissolve in water. However, if you are drawing with chalk, as the water evaporates, it will allow the chalk to spread and create more fun.
Chalk itself is a naturally occurring mineral, so it is generally considered environmentally friendly. However, some commercial chalk products may contain additives or binders that could be harmful to the environment. It's best to look for eco-friendly and non-toxic options when choosing chalk.
near a chalk board
Chalk
The Luhya translation of the English words 'chalk board' is "lisisi lie ichoka".
A compound word with chalk is chalkboard.
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Chalk (Powdered CaCO3) may be used for fine polishing.
Chalk boards are better for the environment than white boards. Chalk is made from natural materials, while white board markers often contain harmful chemicals. Keep in mind however that both chalk boards and white boards are more eco friendly than wasting paper.
a chalk board
maybe it might be near the chalk on the board
You can use it in homemade toothpaste recipes in place of baking soda. Also used in the construction trade when 'snapping' a chalk line on a board, etc.
It would be an insulator- chalk board erasers normally consist of two parts, a wooden handle and a soft pad that wipes off the chalk from the board. Neither of these parts are conductors of electricity.