A bottle of water, with two opposite holes in the lower part, is inside the module; under normal conditions, the water flows out of the holes. Why doesn’t water go out of the holes during the drop? The bottle and the water inside drop with the same acceleration, g; so there is no relative motion between them. We can observe this in a simple way directly above the dropping bottle. How can the astronauts drink inside the ISS in conditions of weightlessness? A movie shows how they do.