Includes bibliographical references (p. 47) and index.
Contents:
How do we know planet Earth is round? -- Other evidence for a round Earth -- Inside Earth -- Why are there layers inside Earth? -- Earth's moving continents -- How do continents move? -- What might happen when Earth's plates separate? -- Other plate movements -- Earthquakes -- Volcanoes.
Summary:
Experiments for students interested in earth science and geophysics
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.