The Earth's interior

Duration: 0:16:00

Year Published: 1971

Creator: Indiana University Audio-Visual Center: Distributor

Format: 16mm

Color: Color

Sound: sound

Description: A presentation of current knowledge concerning the earth's interior from seismic, gravitational, magnetic, and thermal observations. Explains that scientists have concluded that below the earth's crust is a plastic-like mantle and beneath this is a liquid core--possibly of extremely hot, dense, solid materials--which creates our magnetic field.

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