It depends on the Pencil Holder and how it was made.
If it had rubber or plastic in it and rubber or plastic outside it then yes if it's just rubber or plastic with nothing inside of it or outside of it then it's not
Yed
A pencil case can be considered a shell structure if it has a continuous outer surface that provides support and shape, typically seen in hard-shell cases. However, if the pencil case has a frame that supports a flexible material, like fabric, it can be classified as a frame structure. Most common pencil cases are soft and flexible, leaning towards being shell structures, while some hard cases may fit into the frame category.
A cup...
porte-crayon
a pencil holder.
A pencil case is typically considered to be a container or a holder used to store pencils, pens, and other stationery items. It can be made of various materials like cloth, plastic, or metal, with compartments for organizing different items.
If you are referring to the phrase "To serve a purpose" then it would mean to give a use for. For example, A pencil holder cup serves a purpose to a pencil... the pencil give the holder purpose and that purpose is to hold the pencil. Basically it means, that something has a use... there is a reason/intended use for this thing.
In the pencil-holder of dread, perhaps. ...look for it on the Desk of Horror in the Classroom of Misfortune ;-)
an igloo is a shell structure since it is not filled it is only a shell
It's a shell. And because it is hallow Inside. A shell structure is a Structure that is strong hollow And light in size.
Yes, a teacup is a shell structure. A shell structure is defined as a structure that keeps it shape and can support loads within it (as tea in a teacup).
well a pencil has led, wood, metal, and eraser