1. Briefly explain the water cycle, using and defining the terms condensation, precipitation, and evapotranspiration.
2. What is the difference between evaporation and transpiration?
3. Why is the Earth's water balance "balanced"?
4. Although desalination is a method of making more freshwater, it is costly and impractical. What two things do scientists think we should do instead to ensure enough fresh water is available in the future?
5. If an aquifer has high porosity, it will have (high/low) permeability.
6. Which zone of an aquifer is deepest?
7. Water passes (slowly/quickly) through rock that is highly permeable. As the water table's gradient increases, the velocity of the water that runs through the aquifer (increases/decreases).
8. Sometimes an ordinary well will run dry and not have groundwater flow freely into it. Why does this happen?
9. Why will water quickly flow through an artesian well?
10. What is the difference between a hot spring and a geyser?