Mark Lorch has cleverly reimagined the Periodic Table as a subway map, but dastardly Dr. Shapiro has erased the names of some of the stations and subway lines. Can you figure out which four stations Hedgie-Wedgie is visiting above?

Well, the names just get more whimsical from there! Fill in the blanks:
position → velocity → acceleration → jerk → snap → _______ → pop → ____ → drop

For bonus points, come up with your own amusing names for the derivatives after drop!

Solution

The 5^th and 7^th derivatives of position are called crackle (as in Snap, Crackle, and Pop) and lock (as in Pop, Lock & Drop It). No, it isn't official, but naming the 7^th derivative of position is kind of like staking a claim on Neptune; nobody has much incentive to contest it, so you can just do it.

Speaking of which, if it were up to you folks, the 7^th derivative would be called beat, staccato, stop (and 9^th would be roll), tillya, or egg. Inca suggests mop, top, and shop for derivatives 9 through 11.

Congratulations to yesterday's solvers (of one or both): Charlie, Nico, Yana, Atticus, Peter M., Jacob C., Inca, Connor, Leo S., Graham, Kate, Mr. Gregg, and Zachary S. Thanks to everybody who made a guess!