What is water, they know everything.This is the same fluid that flows out of our tap we drink, bathe, and we use for cooking.She filled lakes, seas and oceans, it is contained in the soil, underground and in the sky.Sheds on the ground in the form of rain in the warm season, and winter covers all the land in the form of snow and ice.Yes, and the man almost eighty percent is made up of the same water.Even Losers school know chemical formula is read as water H2O («two of Al"), or even know that H - is hydrogen, and under oxygen O chemists understand.
Without water on our planet can not exist a single living organism.Environmentalists are afraid of us because most of the water on the planet is not safe to drink because it contains a large amount of dissolved salts - sea and ocean water.A supply of fresh water up to date about 80 000 cubic kilometers.That's a lot or a little?Let's see how long it will be in cubic meters and in liters, that is, find out how many liters of water 1 cube, because, strictly speaking, a cubic kilometer - this is not a systemic one.One cubic kilometer contained billion cubic meters.
figures are impressive, is not it?Water on our planet many more.But how many of its more familiar to us liters?After all, we do not measure our water never cubic meters, we measure the volume of liquids in liters.So, let us understand how many liters of water in one cube.Dance to start from the name.One cubic meter is a cube with sides equal to one meter.Let's now prepare to build a cube.If we pour in the cubic liter of water, for example, from a conventional liter jar or beaker, it covers only the bottom of the cube.And the answer to the question: "How many liters of 1 cube?"- We can get only if you fill it with the cube to the top.
clear that run with a liter jar of tap cube nobody wants.Therefore, you can use a bucket or simply build a smaller cube.Read everything we can and do know that the easiest way to divide by 10. So let's prepare to build a cube with sides in decimeter.Our jar filled top to bottom this cube!Hooray!Now you can
elementary calculate how many gallons of water in one cube.If one liter is equal to one cubic decimeter, you just need to count how many of these cubic decimeters per cubic meter.If you take the square, it is possible to calculate quickly - they are exactly 100, that is, 10 in the second degree.But we did not square and cube.Therefore, how many liters of water 1 cube?That's right, exactly 1000.
you have enough perseverance to run 1,000 times with a liter jar?I doubt it.A mathematician, more even arithmetic, helped do just one campaign for water.Now we know exactly how many liters of water 1 cube.We can only convert cubic meters to cubic kilometers, and it is possible to calculate what the supply of fresh water on the planet.
Another interesting fact is that one liter of pure water (distilled) under normal conditions weighs exactly one kilogram.So now that knowing how many liters of water 1 cube, we can count and the total weight of fresh water on the planet.And if you want to know the total weight of water in all the seas and oceans, then you have to take into account that the density of the salt water is higher than fresh, and consequently weigh a liter of salt water must be more.
