Our earth. The fires below /

Whatever is inside the earth is very hot. The trail of clues leads to the model of a metallic core surrounded by a rocky mantle. Huge, slow convection currents rise up, often resulting in earthquakes and volcanoes.

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Bibliographic Details
Main Author: Beilby, Dick (Author, Producer)
Other Authors: Kelly, Karina (Narrator)
Format: Electronic Video
Language:English
Published: [Place of publication not identified] : Australian Broadcasting Corporation, 2003.
Subjects:
Online Access:CONNECT