I would have to say Black or Dark Green.
#1 primary colors make additive colors
They are colours that do not match
any of a group of colors from which all other colors can be obtained by mixing.
No colors can make primary colors. There are two sets of primary colors for mixing different kinds of color. For mixing colored lights together, the primary colors are red, green, and blue. For mixing colored pigments or dyes together, the primary colors are magenta, yellow, and cyan (turquoise). Each of these sets of primary colors are the secondary colors of the other mixing system. The primary colors are: red, yellow, and blue. These were the colors the art masters of old used, and are still used today for mixing paint.
There are seven colors defining wavelengths of visible light. They are red, orange, yellow, green, blue, indigo, and violet.However, the three "primary colors" for ADDITIVE combination (such as the colors on these web pages) are red, blueand green. All edited colors in computer images use a combination of these three. When added together, these component colors form the color "white".For SUBTRACTIVE coloration, as in art, the primary colors are red, blue and yellow.In printing, these three colors were superceded (just as they were for light primaries), the modern equivalents being cyan, magenta, yellow and black.
You Can Order Chalkboards online, there isn't any store that sells them so you have to order them.
The plural form of chalkboard is chalkboards.
Chalkboards are made by coating a smooth surface, like wood or metal, with a mixture of chalk and a binding agent. The material typically used for chalkboards is a type of slate or a synthetic material like porcelain enamel.
There is no official name for the phobia of chalkboards. However, psychologists do recognise that the irrational fear of chalkboards, screeching chalk and fingers dragged on chalkboards do exist. They just don't have an official name. So, for now, "Phobia of chalkboards" will suffice until a name is agreed upon in the future.
The plural for chalkboard is chalkboards. As in "many schools favour whiteboards over chalkboards these days".
Pizarras
To write on the chalkboards you have to click the side to side arrows on your keyboard and the board should have designs switching on them as you hit the arrows
Not necessarily chalkboards, although they had a mineral called slate, though they did not know what it could do, so therefore didn't use it
black
Chalkboards are not magnetic themselves. However, some chalkboards have a steel backing, which makes them magnetic because magnets are attracted to the steel surface. This allows magnetic objects, like magnets and magnetic letters, to stick to the chalkboard.
yes
Originally, chalkboards were made of slate stone and were not magnetic. Some modern chalkboards today are magnetic. Also growing in popularity is the whiteboard, some of which are also magnetic.