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In this problem set, learners will compare actual versus computer track of a solar eclipse in Babylonian times to calculate the rate at which the day is lengthening over time. Answer key is provided. This is part of "Earth Math: A Brief Mathematical... (View More)

Audience: Middle school, High school
Materials Cost: Free

In this problem set, learners will analyze two figures: a graph of Arctic sea ice extent in September between 1950 and 2006, and a graph showing poll results for 2006-2009 for percentage of adults that believe there exists scientific evidence for... (View More)

In this problem set, learners will compare the carbon dioxide produced as a result of two 2010 events: the eruption of the Eyjafjalla Volcano and the burning of oil on the ocean surface to address the Gulf of Mexico oil spill. Answer key is... (View More)

Audience: High school
Materials Cost: Free

In this inquiry investigation, students conclude that the motion of the Earth is linked to the changes we observe such as the length of the day. Students learn about the reason behind the Earth's time zones. An optional water clock and sand clock... (View More)

Keywords: Time; Orbit; Time zones
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