Just go to Think-Thank-Thunk. You’ll get it.
A great example of stuff you can measure that, when you look at the data, might give you some insight. And if you look at the data while applying some actual math, it might give you more.
My go-to example of this that I often use in math workshops is the venerable paragraphs activity. The main idea: you get a sheet with a bunch of paragraphs on it. And a ruler. (And Fathom, if you have it, although graph paper or a (shudder) TI-whatever will do.) The text is the same in each paragraph. They’re set at different widths. The question is, (OK, in 101qs maybe I wouldn’t ask it) how is the height related to the width?
My favorite follow-up if I’m doing a physics workshop in a lab with a lot of equipment is the one I call “Thinking Inside the Box.” The basic idea here is that you have something sticky (e.g., a ball of clay) on an electronic balance. Weigh the thing. Now tilt the scale. How does the weight depend on the tilt? It gets more exciting if, like most students, you do not tare the scale before each measurement.
If I’m really diligent, I’ll write these up here for posterity.