Sciencespeaking topic
Wegener's idea of continental drift was mocked in his own time; how was it vindicated by plate tectonics?
— Alfred Wegener, theory of continental drift (1912) and plate tectonics
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.
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