How its surface changes

Duration: 10 min

Year Published: 1956

Creator: Coronet Films

Color: B&W

Copyright: Registered 8Jul77 · MP32046 (Jul-Dec 1977) Copyright holder: Coronet Instructional Media, a division of Esquire, Inc

Description: Episode of Series “Understanding Our Earth”. Explains the slow but constant changes in the surface of the earth by showing the erosive effects of water and wind upon a recently excavated mound of raw earth. Includes scenes of the eruption of the Paracutin Volcano, the Grand Canyon of the Colorado River, and a rocky mountainside, pointing out the geologic evidence of forces which continue to build up and wear away the surface of the earth.

Metadata Source:Wikipedia — List of Coronet Films