Curated OER
Learning Lesson: The Shadow Knows II
Students discover and practice how to calculate the circumference of the Earth. They measure the length of their shadows and use the distance they are away from the equator to complete the calculations. They discuss winter or summer...
Other
Antarctica Online: Life in Antarctica
Explains the history of the U.S. Antarctic Program and describes each of the three stations operated by the United States, of which McMurdo Station is the largest. Following that is a description of how seasons are experienced in the...