Ingrid from dverse poets has challenged us to write a concrete poem as opposed to an abstract poem. This is new for me but I'm going to give it a try...
Bang! Bang! Bang!
Steely grey projectile
disturbs the city streets;
on high alert people pause
as a car backfires.....

"What is the difference between concrete and abstract subject matter?
A concrete subject can be physically defined, quantified and measured. Examples of concrete subjects would include a tree; a ball; a cat; the human body.
An abstract subject, on the other hand, is something which cannot be quantified, and is often associated with human emotions: love; hate; dreams; happiness or sorrow, for instance."
The Challenge [from Ingrid]
'For this challenge, I want you to write a poem using only concrete nouns, subject matter and imagery. For the purposes of this exercise, the following words are banned: soul, love, lust, dreams, sorrow, suffering, heartache, wonder, etc.'
Here is the link to dverse poets: Concrete