Nearly 97% of the world’s water is salty or otherwise undrinkable. Another 2% is locked in ice caps and glaciers. That leaves just 1% for all of humanity’s needs — all its agricultural, residential, manufacturing, community, and personal needs. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed maximus mollis malesuada. Sed suscipit, tortor nec […]
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What we pour on the ground ends up in our water, and what we spew into the sky ends up in our water. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed maximus mollis malesuada. Sed suscipit, tortor nec sollicitudin tincidunt, massa ipsum vestibulum dui, ut mattis nisl nibh sit amet nibh. Etiam malesuada neque […]
Drinking water, also known as potable water, is water that is safe to drink or to use for food preparation. The amount of drinking water required to maintain good health varies, and depends on physical activity level, health-related issues, and environmental conditions.
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Usually, when solids form, atoms get closer together to form something denser. This is why most solids sink in water. But solid water, or ice, is actually less dense. This is unusual. The water molecules form rings when water freezes. All that space makes ice less dense. This is why it floats. This is great […]
In a gallon of average ocean water, there is about 1 cup of salt. But it does vary. The Atlantic Ocean is saltier than the Pacific Ocean, for instance. Most of the salt in the ocean is the same kind of salt we put on our food: sodium chloride. The saltiest water in the world […]
We experience water in all three states: solid ice, liquid water, and gas water vapor. That’s actually pretty unusual. While all substances can be solid, liquid, or gas, a lot of them only change states at extreme temperatures. You probably don’t see liquid silver or solid oxygen very much because their melting points and freezing […]
Just 3.5 percent of Earth’s water is fresh—that is, with few salts in it. You can find Earth’s freshwater in our lakes, rivers, and streams, but don’t forget groundwater and glaciers. Over 68 percent of Earth’s freshwater is locked up in ice and glaciers. And another 30 percent is in groundwater. Lorem ipsum dolor sit […]