More Watery Facts

Hot water is faster to freeze than cold water

It’s true, this is the most counterintuitive thing you can do. The hottest water will freeze first if you put it in an ice cube tray. The Mpemba effect is named after a Tanzanian student, who discovered it back in 1960. Scientists are still unsure why this happens.

Water on Earth that is drinkable makes up less than 1%

Did you know that 97% all the water on Earth is saltwater? Of the little fresh water available, two thirds are frozen in ice caps and glaciers.

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Drinking 2 litres of filtered water a day is recommended for healthy adults

This depends on a number of factors, including your gender, weight, the temperature, whether you exercise, etc. It’s a good idea to aim for two litres of water per day.

You may feel irritable, dizzy, or have a headache if you don’t drink enough water. Keep your bottle of water handy! Or even better, consider Water Cooler Wales from

Water on Earth has never changed

Earth’s water system is closed. Although water can travel through lakes, oceans and underground springs as well as glaciers and clouds, it is only possible to leave the Earth on a space shuttle.

You could be drinking water molecules that Cleopatra or Julius Caesar or a stegosaurus drank.

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A koala is able to go longer than a camel

Koalas do not need to drink any water. They can get their fluids by eating leaves of eucalyptus. Camels can survive for only six months with no water.

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