Sanguine can be a chalk or crayon which comes in a flesh colour, it can also be a reddish or blood red shade.
The pigment has oxide contained in it and is usually made of clay or chalk.
This can also be the name of a drawing done in this medium and is really the main colour in conte crayons.
The description red chalk also refers to the shade.
Sandy Paste is an acrylic paste which has a gritty texture and is the colour of sand.
You can spread it and make an interesting type of surface which works well for drawing with pastels.
Scale really is the ratio of proportion or dimensions of one object compared to another.
So if you are painting or even drawing, the scale would be the ratio of the composition to your original from which it was taken.
As an example, the picture is drawn one third scale, it would be one third of the size of the original.
Triptych - Basically this is a set of three paintings which all relate to each other.
They can be connected together or hung side by side.
Sometimes they are, in fact, hinged together.
The central work being the main subject with the other paintings flanking either side of it.
These can be mounted on a sort of platform affair and sometimes they are like carvings.
Diptych is a work that is made up by two paintings which can be put together, or spaced apart, or you can also have a Polytych, which is a work made up of four or five panels.
Automatic Drawing, which can also be called automation.
An interesting form of drawing, as with this you use your pencil or brush without really thinking about it.
Probably first used by Surrealists who did not really conform to traditional methods as it allowed them more freedom of expression.
Using this method spontaneously, as it were, strange pictures emerged which also tended to be what I would call Abstract Expressionist.
Graphite - I would say is like a grey black form of carbon.
At one time it was used for writing in small lumps attached to a stick.
Years ago it was named Black Lead, so even now some pencils are not named properly and are sold as lead pencils.
The pencils really are a mixture of clay and graphite.
Conte Crayons go back to around the 18th Century.
These crayons are made up of graphite and clay which has variances, which, in turn, can be used to create different degrees of hardness.
They are a bit like chalk, but slightly greasy, so they do not crumble as much.
Available usually in a few colours, namely brown, black and a red.
These are used for drawing.
Conte invented the modern graphite pencils, but when he was young he was a portrait painter.