Physical density of grade three 1. There is water in a cylindrical container. The distance between the water surface and the upper edge of the container is 7cm. When the water forms ice, the upper edge of the container is 5cm. The depth between the water surface and the bottom of the container is calculated

The density ratio of water to ice is 10:9; because the mass is the same, the volume of ice increases by 1 / 9, and the volume is equal to the bottom area of the container × h, so h increases by 1 / 9, so
H/9=2,H=18cm

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