Questions about the elements were often given away with the atomic number. A lot of lower level chemistry classes involved memorizing the first part of the periodic table.
Some of the others, like the brontosaurus and Eris questions were more like science news. “BTW, we’ve decided to change an arbitrary designation for a different one that we like better, and wonder if you heard.”
Personally, I would have thrown in a question about the scientific method, and another one on what must be involved for a theory to be judged as “scientific”.
/johnny