Florida State University
Florida State University: Color Code Resistor
This resistor color code activity allows you to change the resistance value with a slider and then determine the third digit, multiplier, and tolerance, providing the final resistance in ohms. It allows you to view how the passing...
Other
Esri: Arc Gis: Agricultural Capability of United States Soils
A sophisticated map tool that shows the capability of soils for agriculture, with or without irrigation, for the whole of the United States. Enter a location and a color coded map is shown, along with a key for interpreting it. The...
US Environmental Protection Agency
Epa: Ecological Regions of North America
A helpful map of North America which color codes its 15 ecological regions. Click on the different regions for a brief description of the area.
ClassFlow
Class Flow: 2 Letter State Abbreviation Codes
[Free Registration/Login Required] Students will use Internet resources such as the USPS website to locate the 2-letter state abbreviation codes. Using the floating keyboard and font/color tools, they will display the correct code on...
Curated OER
Etc: Maps Etc: Distribution of Ethnicities in the United States, 1900
A map from 1907 of the United States showing concentrations and distribution of various European ethnic groups in 1900. The map is color-coded to show foreign populations where 8 percent or more of the inhabitants are Scandinavian,...
Curated OER
Etc: Maps Etc: United States and Confederate States, 1861
A map of the United States and Confederate States in 1861. The map is color-coded to show Free Union States, Slave Union States, Confederate States seceding before April 15, 1861, Confederate States seceding after April 15, 1861,...
Curated OER
Educational Technology Clearinghouse: Maps Etc: The United States, 1900
A map from 1900 of the United States showing the territorial expansion from the original Thirteen Colonies to the states and territories of 1900. The map is color-coded to show the original states, states admitted between 1791 and 1860,...
Curated OER
Educational Technology Clearinghouse: Maps Etc: The United States, 1890
A map from 1890 of the United States showing the territorial expansion from the original Thirteen Colonies to the states and territories of 1890. This map shows state capitals, railroads, lakes, and rivers. The map is color-coded to show...
Curated OER
Etc: Maps Etc: Reconstructed United States, 1870
A map of the United States and territories after the Civil War during reconstruction and readmission by 1870. The map is color-coded to show the 'Normal States’ (Union States), the 'Reconstructed States&’ (Confederate States), the...
Curated OER
Etc: The United States Secession, 1860 1861
A map showing the secession of the Confederate States from the Union, from the secession of South Carolina (December 20, 1860) to the secession of Tennessee (June 8, 1861). The map is color-coded to show the Federal States and territory...
Curated OER
Etc: United States During the Civil War, 1861 1865
A map of the United Stated during the American Civil War (1861-1865) showing State and territory boundaries, with dates of statehood for the territories from 1796 to 1861. The map is color-coded to show the Union States, Confederate...
Curated OER
Etc: Maps Etc: United States at the Outbreak of the Civil War, 1861
A map of the United States and territories in 1861 at the outbreak of the Civil War. The map is color-coded to show the Union Free States, the Confederate States seceded before April 15, 1861, the Confederate States seceded after April...
Curated OER
Educational Technology Clearinghouse: Maps Etc: The United States, 1861
A map of the United States in 1861 after the secession of the Southern States. The map is color-coded to show the Free Union States, Union Slaveholding States, Confederate States, and the territories of Washington, Dakota, Nevada, Utah,...
Curated OER
Etc: Maps Etc: United States Expansion and the Railroads, 1880
A map of the United States and territories showing the expansion from the formation of the original states to 1880, and the railroad network in 1880. The map is color-coded to show the original states, the states admitted between 1791...
Curated OER
Etc: Territorial Development of the United States, 1783 1867
A map of the United States showing the growth of the nation from 1783-1867. The map is color-coded to show the thirteen original states, the territory acquired by conquest during the revolution and the Treaty of 1783, the Louisiana...
Curated OER
Etc: United States Civil War, 1861 1865
A map of the eastern United Stated during the American Civil War (1861-1865). The map is color-coded to show the Union States, and the Secession States of the Confederacy. The map shows major cities and towns, railroads, rivers, and...
Curated OER
Etc: The Growth of the United States, 1776 1867
A map of the United States showing the growth of the nation from 1776-1867. The map is color-coded to show the thirteen original states, the territory acquired by conquest during the revolution and the Treaty of 1783, the Louisiana...
Curated OER
Etc: Territorial Growth of the United States , 1783 1867
A map from 1897 of the United States showing the territorial growth from the original States and the Northwest Territory in 1783 to the purchase of Alaska from Russia in 1867. The map is color-coded to show the progression from the...
Curated OER
Etc: Territorial Growth of the United States, 1783 1867
A map from 1897 of the United States showing the territorial growth from the original States and the Northwest Territory in 1783 to the purchase of Alaska from Russia in 1867. The map is color-coded to show the progression from the...
Curated OER
Etc: The Territorial Growth of the United States, 1783 1853
A map from 1911 of the United States showing the territorial growth from the original States and the Northwest Territory in 1783 to the Gadsden Purchase of 1853. The map is color-coded to show the progression from the original thirteen...
Curated OER
Etc: The Territorial Growth of the United States , 1783 1853
A map from 1894 of the United States showing the territorial growth from the original States and the Northwest Territory in 1783 to the Russian cession of Alaska in 1867. The map is color-coded to show the progression from the original...
Curated OER
Etc: Maps Etc: Forest Areas of the United States, 1901
A map from 1901 of the United States showing the principal forest regions. The map is color-coded to show heavily forested areas and areas where forests occur in more or less open areas.
Curated OER
Etc: Maps Etc: The United States and Neighbors, 1898
A map from 1898 of North America, Central America, Greenland, and the Caribbean to Puerto Rico, subtitled "The United States and its Neighbors in North America." The map is color-coded to show the possessions of Greenland (to Denmark),...
Curated OER
Educational Technology Clearinghouse: Maps Etc: United States, 1901
A map from 1901 of the United States showing the physical features of the area, including mountain systems and highlands, plateaus, basins, plains, lakes, rivers, and coastal features. The map is color-coded to show land elevations from...