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Developing Effective Teams

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*No strings attached. This college course is 100% free and is worth 1 semester credit.

26 Sophia partners guarantee credit transfer.

308 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 27 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.


1. The Nature of Volcanic Eruptions- with Geode

This tutorial compares volcanic eruption styles with the composition and other characteristics of the magma contained below the volcano.

Source: Tarbuck-Lutgens, Earth Science Prentice Hall

2. Materials Extruded from Volcanoes

Introduction to materials being extruded from volcanoes.

Source: Tarbuck-Lutgens, Earth Science Prentice Hall

3. Types of Volcanos (Based on magma composition and eruption styles)

Source: Tarbuck-Lutgens Earth Science, Prentice Hall