A Wonderleaf question

a real page from the book
We cry tears because eyes need liquid care, and sometimes they need extra help. Ordinary tears keep eyes comfortable; sudden tears rinse away dust, onion fumes, or pain. Feeling-tears seem to help people show others, something is happening inside.
A detail kids love: tears do not only roll down cheeks. Some drain through tiny openings near the eyelids and travel toward the nose, which is why crying often comes with sniffles same plumbing.
Slice an onion together from a safe distance, then notice eyes and noses without trying to stop the tears.
Watercolour scenes, straight answers, about three minutes cover to cover.
Open the picture bookOne more wonder: Why is space so dark?
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