first-year experiments

I am currently TA’ing the first-year lab class. The kids make up their own experiments (with guidance) and carry them out. Points for originality. One group, working with Lumbriculus variegatus (blackworms; a tiny aquatic segmented worm) has decided to measure their response to disturbance in the water caused by the movement of predators. They’ll be disturbing a dish with the worms in it and then measuring how frequently they flick their heads back and forth in response to different levels of vibration.

How will they be producing this vibration?

By applying a “personal massager” to the bottom of the dish!

Okay, I swear I’m an adult, and a teacher, and all of that. But. Hilarious. I wasn’t the only one snickering during our TA meeting.

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