Videos A to Z

• Everyday Simple Machines: Wheel and axle

  
  • 3-5

  A wheel and axle consists of two circular objects of different sizes. As the wheel grows bigger relative to the axle, mechanical advantage increases.  » more info

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    • UIMC
    • PBS Utah
    • UEN-TV
    • EMEDIA

• Evidence of Change: Darwins journey

  
  • 3-5
  • 6-8
  • 9-12

  Animation depicts the route Darwin traveled in 1831 for 5 years to various locations around the world, including South America, the Galapagos Islands, and other locations in the Pacific.  » more info

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    • UIMC
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    • EMEDIA

• Evidence of Change: DNA

  
  • 3-5
  • 6-8
  • 9-12

  DNA is the fundamental unit of heredity and is found in our cells. It contains the information that living things need to grow and maintain themselves.  » more info

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    • UIMC
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    • EMEDIA

• Evidence of Change: Speciation

  
  • 3-5
  • 6-8
  • 9-12

  Speciation is the evolution of one or more new species from a single existing species. This diagram depicts the likely evolutionary relationship between different species of finches.  » more info

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• Evidence of Change: Vestigial structures: Coccyx

  
  • 3-5
  • 6-8
  • 9-12

  Vestigial structures are structures or remnants of structures that do not have a function. The coccyx, also known as tailbone, is an example of a vestigial structure in humans.  » more info

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• Evidence of Change: Vestigial structure: Whale

  
  • 3-5
  • 6-8
  • 9-12

  Vestigial structures are structures or remnants of structures that do not have a function. Whales and pythons have vestigial hind leg bones embedded in their bodies, illustrating that they evolved from…  » more info

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• Evolution: Ancient fossils

  
  • 3-5
  • 6-8
  • 9-12

  Ancient fossils Darwin found in South America suggested that ancient animals might be related to present-day living organisms.  » more info

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• Evolution: Darwins return route

  
  • 3-5
  • 6-8
  • 9-12

  Animation depicts the route Darwin traveled as he returned home to England in 1836, five years after departing on his trip. The information he gathered on this trip led to the theory of natural selection.  » more info

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• Exploring Desert Biomes: Deserts in world

  
  • 3-5

  Deserts cover about one-fifth of Earth's surface. Most deserts are located between about 30 degrees north and 30 degrees south latitude.  » more info

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• Exploring Earth, Sun, and Moon: Lunar eclipse

  
  • 3-5

  A lunar eclipse occurs when Earth is directly between the moon and sun. In a lunar eclipse the Earth casts a shadow on the moon, causing part or all of the moon to darken to an orange-red color.  » more info

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    • EMEDIA