| A | B |
|---|
| sheeet wash | a thin layer of water fans out over the land |
| hydrologists | scientists who study water |
| surface water | the water which can be seen on the urface of the earth |
| geologists | scientists who study natural features of the land surface |
| erosion | the wearing away and moving of particles of soil and rock |
| spring | formed when the water that flows slowly underground in rocks or soil finds its way to the earth's surface |
| ground water | water which is soaked into the earth that cannot be seen from spaced |
| organic matter | living and decayed pland and animal |
| gullying | when the continuous flow of water creates a ditch |
| organic matter | material which has never been alive |
| weathering | the process by which rocks break down to earth materials including soil |
| sedimentary rock | the depositing particles of soil and rock |
