Sciencespeaking topic
The hydrogen atoms in a glass of water are older than every star in the universe; they're left over from the Big Bang. The water in your hand is a keepsake from the universe's first minutes. How can something so ordinary be so ancient?
— Big Bang nucleosynthesis / hydrogen
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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