Showing 1 - 20 results of 123 for search '"documentary"', query time: 0.04s Refine Results
  1. 1
    Learn how sewage and industrial waste water are made clean for reuse at a treatment plant /

    Learn how sewage and industrial waste water are made clean for reuse at a treatment plant /

    Published 2018
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  2. 2
    Learn about the different stages in a lunar eclipse /

    Learn about the different stages in a lunar eclipse /

    Published 2011
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  3. 3
    Learn about the growth process of bones in the human skeletal system /

    Learn about the growth process of bones in the human skeletal system /

    Published 2011
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  4. 4
    Overview of the energy-storing process of photosynthesis in plants /

    Overview of the energy-storing process of photosynthesis in plants /

    Published 2011
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  5. 5
    Plant physiology.

    Plant physiology.

    Published 2020
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    Electronic Video

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  6. 6
    Learn what the atmosphere is made of /

    Learn what the atmosphere is made of /

    Published 2016
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  7. 7
    Learn about frequency and amplititude, two important qualities of sound /

    Learn about frequency and amplititude, two important qualities of sound /

    Published 2012
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  8. 8
    A variety of adaptations among fish, including ray-finned fish, jawfish, seahorses, and pipefish /

    A variety of adaptations among fish, including ray-finned fish, jawfish, seahorses, and pipefish /

    Published 2011
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  9. 9
    Overview of toads, A type amphibian found all over the world /

    Overview of toads, A type amphibian found all over the world /

    Published 2016
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  10. 10
    Learn how land ownership in Ireland shifted from Catholic to Protestant between 1641 and 1703 /

    Learn how land ownership in Ireland shifted from Catholic to Protestant between 1641 and 1703 /

    Published 2011
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  11. 11
    Learn how the Earth's orbit and the tilt of its axis are responsible for the changing seasons /

    Learn how the Earth's orbit and the tilt of its axis are responsible for the changing seasons /

    Published 2011
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  12. 12
    Explanation of transfer of heat energy /

    Explanation of transfer of heat energy /

    Published 2011
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  13. 13
    Learn about the four different kinds of drought : permanent, seasonal, unpredictable, and invisible /

    Learn about the four different kinds of drought : permanent, seasonal, unpredictable, and invisible /

    Published 2013
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  14. 14
    Learn about the different types of electric circuits that include either series or parallel circuits /

    Learn about the different types of electric circuits that include either series or parallel circuits /

    Published 2013
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  15. 15
    Explanation of why only one side of the moon faces Earth /

    Explanation of why only one side of the moon faces Earth /

    Published 2012
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  16. 16
    Learn about different species of cranes and their behaviors /

    Learn about different species of cranes and their behaviors /

    Published 2018
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  17. 17
    Learn about James Madison, the fourth President of the United States /

    Learn about James Madison, the fourth President of the United States /

    Published 2017
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  18. 18
    Demonstration of how exoplanets (planets beyond our solar system) are detected and measured /

    Demonstration of how exoplanets (planets beyond our solar system) are detected and measured /

    Published 2014
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  19. 19
    Learn about Dred Scott and the controversial court case named for him /

    Learn about Dred Scott and the controversial court case named for him /

    Published 2018
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  20. 20
    Discover ancient Greece and the contrasting city-states of Athens and Sparta /

    Discover ancient Greece and the contrasting city-states of Athens and Sparta /

    Published 2019
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