Earth and the universe / [filem jalur]
Contents: 1. The solar system : one among millions -- 2. The earth : a planet in motion -- 3. The moon : earth's satellite -- 4. The stars and space -- 5. The sun : energy from a star -- 6. Space : explorations and discoveries
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| Julkaistu: |
Chicago, I11. : Society for Visual Education, Inc.,
1976
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| Aiheet: |