Curated OER
Etc: Maps Etc: Climate and Watersheds of the United States, 1868
A map from 1868 of the United States showing physical features, mean annual temperatures, rainfall distribution, watersheds, and principal products in the area. The average annual temperatures are shown by isotherms, with temperatures...
Curated OER
Wikipedia: Natl Historic Landmarks in Ma: Blue Hill Meteorological Observatory
Described as "principal structure associated with the history of weather observation" in the United States, this observatory is home to the oldest continuous weather record in North America, and is where numerous meteorological...
Science Education Resource Center at Carleton College
Serc: Geo Logic: Continental Drift and Plate Tectonics
Using the skills of a paleontologist, students are asked to match up lecturers with what day and time they teach, and how many students they have based on clues given from several different perspectives. In the second part of the...
Curated OER
Etc: Maps Etc: Test Vote on the Kansas Nebraska Bill, 1854
A map of the United States in 1854 showing the results of the test-vote on the Kansas-Nebraska Bill in the House of Representatives, which would repeal the Missouri Compromise of 1820 and allow territorial settlers to determine if...
TeachEngineering
Teach Engineering: Dams
Through eight lessons, students are introduced to many facets of dams, including their basic components, the common types (all designed to resist strong forces), their primary benefits (electricity generation, water supply, flood...