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Earth's Water: Groundwater topics

• What is groundwater
• Aquifers
• Importance of groundwater
• Ground water flowing from a road cut
• Groundwater seepage
• Groundwater quality
• Pesticides in groundwater

• Groundwater use
• Trends in ground-water use
• Groundwater depletion
• Groundwater use and water-level decline
• Effects of drought on groundwater resources

• Sinkholes
• Land subsidence
• Land subsidence (more)
• Water wells
• Artesian (flowing) well?
• Truck-mounted drill rig
• The messy job of drilling a well

• Water dowsing
• How hydrologists find groundwater

• True/False quiz: Ground water

The water cycle

• The water cycle
• Groundwater storage
• Groundwater discharge
• Infiltration
• Springs
• Follow this drop through the water cycle
• See how a 2nd grade Australian class views the water cycle

A USGS Fact Sheet about groundwater