they are multicoloured so different coloured and maybe that could mean the polymeres are different types.
The best answer here would be pencil.
Artists use pencil to make sketches and create studies. They then use these sketches and studies to create their final larger piece. They use pencil because it's quick, can be corrected, lightweight and easy to use. Before pencils artists would make charcoal drawings but once we had pencils it made sense to use them as they aren't messy like charcoal.
I’m a little confused by what you mean but here’s my best answer
-table of contents: helps readers know where to look for certain chapters and such. (Organizes book)
-heading: tells reader what a chapter is about
-caption: description of something
-glossary: helps readers know certain vocabulary
-bold faced words: attracts the readers eye
-label: helps to identify something or someone
-photograph: can help a reader better understand a text
-diagram: informative and helps readers know more and understand better
I hope this helps!!
