Here's how it works:

1. Groundwater Flow: Groundwater moves slowly through the ground, following the path of least resistance. This often leads it towards areas where the water table intersects the ground surface.

2. Water Table Intersection: The water table is the upper limit of the zone of saturation, where all the pores in the ground are filled with water. When the water table intersects the surface, the groundwater has nowhere else to go but up.

3. Spring Formation: This upward movement of groundwater often results in a spring, where the water flows out of the ground and onto the surface.

This is just one way groundwater can become surface water. Other examples include:

* Seepage: Groundwater can slowly seep out of the ground in areas where the water table is close to the surface.

* Wells: Wells are human-made openings that allow groundwater to be accessed. Water pumped from wells can then become surface water.

* Streamflow: In many areas, groundwater contributes to the flow of rivers and streams.