Learn about the water cycle in order. Study the importance of evaporation, condensation, and precipitation in the water cycle and discover examples of each.

Understand what infiltration in the water cycle is by learning the definitions and processes of runoff and infiltration. See their differences with examples.

Learn the definitions of transpiration and evaporation and understand their differences. Learn how plants contribute to the water cycle through these processes.

Hydrologic Cycle Definition The hydrologic cycle, also known as the water cycle, is the series of processes that water goes through during its journey on, above, and below Earth's surface.

What is transpiration in the water cycle? Through transpiration, plants pull water from the surface of the Earth through their root hairs.

What is runoff? In this lesson, learn the definition of runoff and its role in the water cycle. Read several examples of how runoff can occur.

Learn about runoff in the water cycle and its environmental impact. Watch the short science video and take the quiz to reinforce your learning.

Learn about the water cycle, a repeated process that moves water around the planet. Discover the four stages of the water cycle and what they do: evaporation, condensation, precipitation, and ...

The water cycle begins when surface water, usually from the ocean, evaporates, or turns to gas, and enters the atmosphere. In the atmosphere, water condenses around particles of dust and forms clouds.

What is condensation? Learn the definition of condensation, how the condensation process works, the temperature at which condensation occurs, and...