Sciencespeaking topic
How did Leeuwenhoek seeing tiny living creatures in a drop of water with his own handmade microscope open the door to an invisible world?
— Antonie van Leeuwenhoek, the microscope and the discovery of microorganisms
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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