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Why your black board does look white after using again and again?
Wiki User
∙ 11y ago
because the particles of the chalk or any other substance which is used to write on black board has very tiny particles which get attached with white board.
Wiki User
∙ 11y ago
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Why is it possible to write on a blackboard with chalk?
Chalk is used on the black board because chalk is easy to write with on a black board.
How do you get white marks out of black jeans?
One way to get white marks out of black jeans is to dye them black again. You could also use a black marker or pen to color in the white marks. In the future you should wash black jean inside out so these marks are less likely to appear.
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In white board cleaner there is mostly clorene and alcohol.
Why are black and white not true colors?
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What is black when it is clean and white?
a chalk board
Why does the board look white even after erasing it again and again?
It's a whiteboard?
How black coloumns are there in one chess board?
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What is is black then white then black again?
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How do you get the white part of a black and white top white again?
wash it with bleach 'til it come clean again
Why white board invented?
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.
What board is chess played on?
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What colors are there on a chess board?
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What do you mean by operation black board?
A black board is what some teachers have and some very lucky people have some too. They are a little bit like white boards but you need to write on white boards with white board pens and on black boards you need to use chork. You can use any length or any colour chork.
