What kind of meter and rhyme does Incident poem by Countee Culleen have it?

[OMGgggg]

Is it Iambic meter and end rhyme? can you please explain detail especailly for the meter?

Here is the Incident poem

Once riding in old Baltimore,
Heart-filled, head-filled with glee;
I saw a Baltimorean
Keep looking straight at me.

Now I was eight and very small,
And he was no whit bigger,
And so I smiled, but he poked out
His tongue, and called me, "Nigger."

I saw the whole of Baltimore
From May until December;
Of all the things that happened there
That's all that I remember.