Earth In Change : Earth's Crust

Format: 16mm

Sound: sound

Description: The Earth in Change - the Earth's Crust Produced by Encyclopedia Britannica Films Year published 1961 Grade Level: I J H Distributed on media: 1 film reel (16 min.), optical sound, 16 mm. Color?Color; B & W Length: 16 MIN Description: Explains why the land changes on earth. Describes how natural processes--erosion, folding, sedimentation, volcanic action and earthquakes--affect the earth's crust. Explains how the geologic history of the earth can be determined from a study of the earth's crust.

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