Why does water weigh 8 pounds per gallon in liquid and 5 pounds per gallon in Ice?

Answer 1

Your crazy imperial measurements confuse me. Water weighs 1 kilogram per litre.

The answer to your question is that ice is less dense than water. This is due to the crystalline structure of ice, which takes up more space per molecule of water than in its liquid form.

Answer 2

Water weighs 8 pounds per gallon in liquid form because the density of liquid water is about 1 kg/L, which is roughly equivalent to 8 pounds per gallon. However, ice is less dense than liquid water, so it weighs less per gallon. This is because the molecular structure of ice allows the molecules to be more spread out compared to liquid water.