Homework
In science class we learned
the hottest point of steam
is at the tip of the teapot spout—
where streams of swelling heat
rupture the cooler air.
After school, I do my homework
upstairs in my room.
My kid sister murmurs
somewhere,
playing family on her own.
When the clock clicks four
the stacks of the factory moan,
and the sky
gets smudged with smoke.