Sciencespeaking topic
When a glass of hot water and a glass of cold water are frozen under the same conditions, sometimes the hot one freezes first. It's completely counterintuitive and still not fully explained. Is the way forward sometimes to start 'hotter'?
— Mpemba effect
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.
similar topics
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