Water, in the form of rain or snow, falls from the sky.

When it reaches the ground, water can do one of three things: run off, evaporate, or soak into the soil.

If water runs off, it joins other water and becomes a river or flows into the ocean.

If water evaporates, it turns into vapor and rises back up into the sky.

If water soaks into the ground, it becomes groundwater and can be stored in underground layers called aquifers.

Groundwater can also flow through porous rocks, forming underground rivers and springs.

Water is essential for all living things and is constantly moving through the water cycle.

Hydrology is the study of water and how it moves through the Earth's systems.

Hydrologists use tools like satellites, sensors, and computer models to understand the water cycle and predict weather patterns.

By studying hydrology, scientists can help protect our water sources and ensure a healthy environment for all.