1. Water seeps into the ground from events like rain or ice/snow melting.
2. We know there are little spaces between soil and sand particles (we saw this under the microscope).
3. Land that's connected to bodies of water has water seep into them, too.
This made us wonder if every place has this happen to it, since it seems like lots of places have groundwater. We took two screenshots of places we've had familiarity with recently: Dodge City, KS and Chicago, IL.
This got us thinking...
Mrs. Brinza also took a ball to the street--as a model for a water particle to see what would happen to it, and it rolled to the edge of the street towards the sewer cap.