Fold, Crease, Inflate: A New Activity for The Human Body

Here’s a whopper (no lie!) of a figure about the respiratory system: we breathe in and out, in and out, about 20,000 times a day.

Make a tiny model of an ever-active lung in our next activity (peek at past explorations of the digestive and skeletal systems). Just print, cut, fold, and puff – and prompt further questions on how our lungs and their little alveoli work.