1. Primary and Secondary Resources
4th Grade
Unit 6: Economics
Primary and Secondary Resources
Map courtesy Wikimedia Commons: by Uwe Dedering and is licensed under

2. Composite Map: Including multiple resources and goods produced by region (North and South)
Base Map: By Uwe Dedering (Own work) [CC BY-SA 3.0 ( or GFDL ( via Wikimedia Commons. From
Overlay for Tree Growth extrapolated from: [Public domain], via Wikimedia Commons. From
Overlay for cotton extrapolated from Overlay for industrial centers and steel extrapolated from

3. The darker the green color, the more wealthy people are in that area.
By Vikjam (Own work) [CC BY-SA 3.0 ( via Wikimedia Commons. From

4. Where the Trees Are
Where the Trees Are - NASA Earth Observatory. By Map by Robert Simmon, based on multiple data sets compiled and analyzed by the Woods Hole Research Center. Data inputs include the Shuttle Radar Topography Mission, the National Land Cover Database (based on Landsat) and the Forest Inventory and Analysis of the U.S. Forest Service. Caption by Michael Carlowicz. [Public domain], via Wikimedia Commons. From

5. Cotton Growing in the US
This map shows where cotton is grown in the US (while this is a modern map, cotton has always been king in the South). By National Agricultural Statistical Service, United States Department of Agriculture [Public domain], via Wikimedia Commons. From

6. Map Delineating Confederate and Union States
By Júlio Reis - by myself, CC BY-SA 3.0,

7. The Oregon Trail Game Map
Map courtesy of the Nation Park Service. Edited by Nancy Balaun to add stars and event numbers.

9. Eli Whitney: Cotton Gin
By Tom Murphy VII (Taken by uploader, user:brighterorange.) [Public domain], via Wikimedia Commons. From

10. 200th steam locomotive built by Clyde TF 1164 from The Powerhouse Museum
By Clyde works in Granville, NSW [Public domain], via Wikimedia Commons. From

11. VR steam loco
By Matthew Ross (Matthewross) (Own work) [GFDL ( CC-BY-SA-3.0 ( or CC BY-SA ( via Wikimedia Commons.. From

12. Steam Engine
By Andy Dingley (scanner) [Public domain], via Wikimedia Commons. From

13. A typical river paddle steamer from the 1850s-the Ben Campbell
See page for author [Public domain], via Wikimedia Commons. From

14. "Look out" (Transport Steamer) on Tennessee River - NARA - 5289791 restored
Mathew Brady [Public domain], via Wikimedia Commons. From

15. Phelps' Electro-motor Printing Telegraph
See page for author [Public domain], via Wikimedia Commons. From

16. Miss Ethel Wakefield, a Western Union telegraph PBX operator
Esther Bubley [Public domain], via Wikimedia Commons. From

17. Prairie Schooner
By Pearson Scott Foresman [Public domain], via Wikimedia Commons From

18. Manhattan gold mining town, 1888
By Unknown [Public domain], via Wikimedia Commons. From

19. A woman with three men panning for gold during the California Gold Rush
See page for author [Public domain], via Wikimedia Commons. From

20. Panning for gold on the Mokelumne River
See page for author [Public domain], via Wikimedia Commons. From

21. Forty-niner panning for gold
By Photo: L. C. McClure [Public domain], via Wikimedia Commons. From

22. Portsmouth Square, San Francisco, during the Gold Rush, 1851
See page for author [Public domain], via Wikimedia Commons. From

23. Steel industry inside loc
Public Domain, From

24. Cotton field
See page for author [Public domain], via Wikimedia Commons. From

25. The Barrow Hematite Steel Company operated 18 Bessemer converters and owned the largest steelworks in the world at the turn of the 20th century.
By unknown or earlier, republished by University of Strathclyde project - Public Domain,