Write four lines of prose about: the chemical.
Spent the morning harvesting for tomorrow's market. With the end of berries freeing up a big chunk of harvest energy I spent some time collecting a crate's worth of leeks, which is the first time this year I've had that (not) pleasure. Pulling those things out of the soil is a total back killer.
Also got some cucumbers, zucchini, cherry tomatoes, bigger tomatoes, and peppers. I'll be bringing the first pick of Ambrosia apples with me as well, so hopefully they'll attract some customers to the table. The weather is supposed to be pretty ideal so it should be a good one.
"... and the two chemicals, when mixed thusly, combine to form a substance corrosive enough to dissolve human flesh."
The classroom, previously filled with idle chatter and bored students, fell deathly silent.
"Which is why they will remain locked in my office whenever I have to leave the room."
A groan born on thirty lips rumbled though the room and was then replaced by the return of the mindless blathering of uninterested teenagers.