Learn about volcanic magma and the role its components play in its rate of flow and explosiveness / [Ed Moragne, narrator] ; [Theodore Pappas, director] ; [Kurt Heintz, direction]
Some volcanoes are explosive and massively destructive. Others are relatively sedate, oozing liquid rock. The nature of their magma explains some of the difference
Notes
Title from resource description page (viewed February 2, 2022)
