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[crinkling noise] Let's drop calcium metal into water. [background nose] [student in audience]: Bubbles. [background nose] -You see bubbles. It bubbles kind of rapidly, so you can see your...
Lizzie: So, here on my videos, we've had some crazy things happen on camera, and there have been several moments that we didn't include. So this was not an easy decision to make. But...
(Spanish/Español translation by Paula Corbacho, IES Lenguas Vivas "J R Fernández", Buenos Aires, Argentina. Reviewed by Dr. Gabriela Gorelik, University of Michigan) El ensayo por...