Learn about new water molecule-splitting technology that separates hydrogen and oxygen

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The fundamentals of acids and bases and how the pH scale is used to measure them.

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Sublimation is the conversion of a substance from the solid to the gaseous state without its becoming liquid. It occurs more frequently among substances that are close to their freezing point.

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A catalyst that splits water into hydrogen and oxygen.

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Learn why fresh water and seawater have different freezing points.

Encyclopædia Britannica, Inc.

Overview of water moving through the hydrologic cycle, or water cycle: it evaporates from Earth's surface as water vapor, which condenses in the atmosphere, forming clouds and precipitation, which falls to the land and flows through lakes, rivers, and oceans, from which water evaporates as the cycle repeats.

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An overview of the chemical structure of water molecules.

Encyclopædia Britannica, Inc.

Dust and other aerosols suspended in the atmosphere provide the surfaces upon which water vapour can condense. These condensation surfaces facilitate the development of clouds.

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An explanation of why seawater is salty.