0
Why is wet chalk not visible on blackboard but is visible when it dries?
Wiki User
∙ 9y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
When written in wet chalk first it is not visible but later it is visible why?
Some of the chalk is dissolved into the water and so when you write on a board the chalk can not easily be seen. The water then evaporates leaving only chalk behind therefore becoming visible.
When written in wet chalk first it is not visible but slowly it becomes visible why?
because you have to let it dry
How to you clean a blackboard?
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.
How do you season a new chalkboard?
Blackboard manufacturers often advise that a new or newly resurfaced chalkboard be completely covered using the side of a stick of chalk and then that chalk brushed off as normal to prepare it for use. Blackboards are commonly used in teaching. The chalk marks can be quickly and easily wiped off with a damp cloth or a special blackboard eraser consisting of a block of wood covered by a felt pad. Chalkmarks made on some types of wet blackboard can be difficult to remove.
What dries as its wet?
A towel
Why does the water does not wet the umbrella?
it does get wet it just dries quickly
What gets wet as it dries?
A towel
Hydrogen peroxide reaction with chalk?
It does absolutely nothing, all the peroxide does to the chalk is make the chalk look wet for many hours.
Why does chalk slowly glows when dipped in the water and written on board?
chalk has a compound in it that releases the glow when wet.
What happens if a hippopotamus doesn't keep itself wet?
It dries out...
What happens when you wet a cotton ball and put it in the sun?
it dries out.
Why do towels get more wet the more it dries?
They don't lol
