Science Education Resource Center at Carleton College
Serc: How Does the Temperature of the Great Lakes Change Over Time?
This activity allows students to use water surface temperature, bathymetric data, and weather data to look at trends in the water temperature of the Great Lakes.
Environmental Education for Kids
Eek!: Lake Superior
This site provides facts, illustrations, and more about the largest Great Lake. Includes descriptions of wildlife and industry. For grades 4-8.
Curated OER
Etc: Maps Etc: Physical Map of South America, 1898
A map from 1898 of South America showing the general physical features including mountain systems, prominent peaks and volcanoes, river and lake systems, plateaus, and coastal features. The map includes an insert of the Isthmus of...