Sciencespeaking topic
Almost every atom in your body was once cooked inside a star. The calcium in your bones, the iron in your blood, all of it came from exploding stars. How old is the matter you are made of, really?
— stellar nucleosynthesis
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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