Water-Earth Dynamics, Challenge 1: A Texas Panhandle Whodunit

Research and Revise

Now that you have shared information about what you know and examined multiple perspectives, it is time for you to research and revise your ideas.  Use the Web sites listed at the bottom of the page to help you address the challenge.

Vocabulary List

Landscape Playa Map
Llano Estacado Alluvial fan Cenozoic Era
Canyon Delta Quaternary Period
Spring Arroyo Pleistocene Epoch
Stream Wetland Holocene Epoch
Floodplain Geomorphology Paleoindian
Lake Fluvial Last Glacial Maximum (LGM)


  • Measuring Distance and Area in Satellite Images is an activity in the Earth Exploration Toolbook that guides learners to set a scale and make measurements from digital satellite images.  Learners analyze NASA images of the Aral Sea, making distance and area measurements to characterize changes in the size of this freshwater lake over time.  The skills that you will master in this exercise can be applied to help you address this challenge.
  • The cartography map by Kathy Andrews and C. Elaine Bohls-Graham, Let's Get Mapable, Mapable - A Legacy Cycle Map Unit, is an exercise that shows you how to create an atlas for the county you live in.

Making and Working with Maps and Interactive Mapping Tools

Visit these Web sites to access maps, map viewers, and mapping tools.

  • The Texas Water Development Board's Water Data Interactive (WDI), is an interactive mapping tool that allows users to zoom in on areas throughout Texas and view layers including aquifers, rivers and river basins, reservoirs, USGS topographic maps, and the locations of wells that are used to monitor groundwater conditions.  Information about individual reservoirs and monitoring wells can be accessed through the maps.
  • U.S. Geological Survey National Map offers base data, map products and geospatial web services.