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Water Cycle Components

Earth's water is always in motion, and the natural water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth. Water is always changing states between liquid, vapor, and ice, with these processes happening in the blink of an eye and over millions of years.

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The Sun and the Water Cycle

Who's the boss? The real boss of the water cycle doesn't even live here on Earth. The sun is what makes the water cycle work. The sun provides what almost everything on Earth needs to go—energy, or heat.
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The Sun and the Water Cycle

Who's the boss? The real boss of the water cycle doesn't even live here on Earth. The sun is what makes the water cycle work. The sun provides what almost everything on Earth needs to go—energy, or heat.
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El Ciclo del Agua, The Water Cycle, Spanish

El Ciclo del Agua, The Water Cycle, SpanishEste diagrama muestra solo el ciclo natural del agua, ignorando las influencias humanas.
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El Ciclo del Agua, The Water Cycle, Spanish

El Ciclo del Agua, The Water Cycle, SpanishEste diagrama muestra solo el ciclo natural del agua, ignorando las influencias humanas.
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Dystrybucja wody na Ziemi, Earth's Water Distribution, Polish

Dystrybucja wody na Ziemi
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The Water Cycle for Adults and Advanced Students - In Many Languages

From Afrikaans to Zulu, the Water Science School has the world covered. Volunteers from around the globe have provided us with a water cycle diagram and summary text in over 60 languages. The diagrams below are intended for adults and advanced students. This information is about the natural water cycle, ignoring human influences.
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The Water Cycle for Adults and Advanced Students - In Many Languages

From Afrikaans to Zulu, the Water Science School has the world covered. Volunteers from around the globe have provided us with a water cycle diagram and summary text in over 60 languages. The diagrams below are intended for adults and advanced students. This information is about the natural water cycle, ignoring human influences.
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The Water Cycle for Schools and Kids - In Many Languages

From Albanian to Yoruba, the Water Science School has schools and kids all around the world covered. Volunteers from around the globe have provided us with a water cycle diagram just for schools and kids in over 35 languages. Note: This section of the Water Science School discusses the Earth's "natural" water cycle without human interference.
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The Water Cycle for Schools and Kids - In Many Languages

From Albanian to Yoruba, the Water Science School has schools and kids all around the world covered. Volunteers from around the globe have provided us with a water cycle diagram just for schools and kids in over 35 languages. Note: This section of the Water Science School discusses the Earth's "natural" water cycle without human interference.
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The Water Science School -- What We Offer

The U.S. Geological Survey's Water Science SchoolWhere anyone of any age can learn all about water.
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The Water Science School -- What We Offer

The U.S. Geological Survey's Water Science SchoolWhere anyone of any age can learn all about water.
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The Fundamentals of the Water Cycle

Earth's water is always in movement, and the natural water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth. Water is always changing states between liquid, vapor, and ice, with these processes happening in the blink of an eye and over millions of years.
link

The Fundamentals of the Water Cycle

Earth's water is always in movement, and the natural water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth. Water is always changing states between liquid, vapor, and ice, with these processes happening in the blink of an eye and over millions of years.
Learn More

How Much Does a Cloud Weigh?

I don't know anyone who is afraid to walk underneath a cumulus cloud because they are afraid it might fall on them. We don't think of clouds even having weight because they are floating. But, clouds are made up of a physical substance, water, and water is quite heavy, so clouds must have weight. We will explain this "paradox" to you if you read on.
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How Much Does a Cloud Weigh?

I don't know anyone who is afraid to walk underneath a cumulus cloud because they are afraid it might fall on them. We don't think of clouds even having weight because they are floating. But, clouds are made up of a physical substance, water, and water is quite heavy, so clouds must have weight. We will explain this "paradox" to you if you read on.
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Water Science Photo Galleries

Learn about water using pictures
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Water Science Photo Galleries

Learn about water using pictures
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Snowmelt Runoff and the Water Cycle

Perhaps you've never seen snow. Or, perhaps you built a snowman this very afternoon and perhaps you saw your snowman begin to melt. Regardless of your experience with snow and associated snowmelt, runoff from snowmelt is a major component of the global movement of water, possibly even if you live where it never snows. Note: This section of the Water Science School discusses the Earth's "natural"...
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Snowmelt Runoff and the Water Cycle

Perhaps you've never seen snow. Or, perhaps you built a snowman this very afternoon and perhaps you saw your snowman begin to melt. Regardless of your experience with snow and associated snowmelt, runoff from snowmelt is a major component of the global movement of water, possibly even if you live where it never snows. Note: This section of the Water Science School discusses the Earth's "natural"...
Learn More

The Water Cycle for Schools

Earth's water is always in movement, and the natural water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth. Water is always changing states between liquid, vapor, and ice, with these processes happening in the blink of an eye and over millions of years.
link

The Water Cycle for Schools

Earth's water is always in movement, and the natural water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth. Water is always changing states between liquid, vapor, and ice, with these processes happening in the blink of an eye and over millions of years.
Learn More

Interactive Water Cycle Diagrams for Schools and Kids

Our interactive diagrams allow you to "mouse around" the parts of the water cycle and view explanations, pictures, and more.
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Interactive Water Cycle Diagrams for Schools and Kids

Our interactive diagrams allow you to "mouse around" the parts of the water cycle and view explanations, pictures, and more.
Learn More