Sciencespeaking topic

A coral reef is not a single creature but the shared skeleton of billions of tiny animals; even after they all die the stone remains and new ones settle on top. Is this how cities are built too, on the skeletons the dead leave behind?

coral / colonial organism

practice with this topic

Set the timer (5-30 min), take 20 seconds of prep if you like, start talking. Jot your thoughts onto the sticky-note board.