A millimetre of water weighs nothing, because a millimetre is a measurement in one dimension - a measurement of length. 3 dimensions are needed to describe a real quantity, with mass. A millilitre of water, on the other hand, equivalent to 1cm3, has a mass of exactly a gram. This is because the properties of water are among the principle constants upon which the metric system is based. A cubic millimetre of water has a mass of 0.001g.
It becomes denser and denser until that 1 sq millimeter may to weigh as much as one ton.
One millimeter is 0.393701 inches.
One once
1 litre.
One gallon of water weighs about 8.34 pounds, so one hundred gallons of water would weigh approximately 834 pounds.
One cubic centimeter of water would fit into that cup, and it would weigh 1 gram.
I litre of water weighs one kilogram on year and would weigh 0.1 kilograms.
about 4kg
One liter of water weighs one kilogram, so 1000 liters of water would weigh 1000 kilograms, which is equivalent to 1 metric ton.
Yes, MUCH bigger; about 914 times larger than one millimeter.
About 8.35 pounds.
1 mm rain means that 100 tons water falls on 1 acaor land.