NASA
Water Works on a Blue Planet
Keep within a water budget. Learners find out that less than 2.5% of Earth's water is available to drink—and that there is a fixed amount of water. Scholars read an interesting article comparing the available water to a game of Monopoly...
University Corporation for Atmospheric Research
Ucar: The Water Cycle and Climate Change
Water moves from place to place through the water cycle, which is changing as climate changes. Learn how the water cycle is changing as global temperatures rise.
Open Curriculum
Open Curriculum: Water and Water Cycle
An illustrated article helps learners understand the water cycle and the distribution of Earth's water.
American Geosciences Institute
American Geosciences Institute: What Is the Water Cycle?
See Earth's water cycle as a closed system, where all the water is cycled through the atmosphere.
American Geosciences Institute
American Geosciences Institute: How Is Water Recycled in Nature?
Learn about nature's most reliable geochemical cycle, the water cycle.
Mocomi & Anibrain Digital Technologies
Mocomi: Major Domains of the Earth Hydrosphere
Learn about the hydrosphere, the water cycle, the major threats to the hydrosphere, and environmental problems.
Other
The Hydrological Cycle an Human Impact on It. [Pdf]
The hydrological cycle is usually called a recurring consequence of different forms of movement of water and changes of its physical state on a given area of the Earth. The role of different processes in the hydrological cycle and their...
Enchanted Learning
Enchanted Learning: Zoom Astronomy: The Earth's Atmosphere
Site provides information on the Earth's atmosphere as well as offers additional information about Earth.
Other
Few: Human Impact on the Environment & Environmental Impact on Humans
Human beings have an enormous impact on the natural environment, and ultimately on each other. The way we chose to house, clothe, shelter, and meet the needs for vital resources such as food, energy, and water, not only affect the...
University Corporation for Atmospheric Research
Ucar: Biogeochemical Cycles
The ways in which an element or compound such as water moves between its various living and nonliving forms and locations in the biosphere is called a biogeochemical cycle. All of the atoms that are building blocks of living things are a...
Other
The Incalculable Importance of Plankton
Plankton is a passively swimming plant life in a body of water known as the ocean. The Plankton that live in our ocean have one of the most important roles in the our Carbon Ecosystem. The importance of Plankton in our Ecosystem is...
American Geosciences Institute
American Geosciences Institute: Evaporation and Condensation
A concise explanation of the difference between evaporation and condensation.
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