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    National Park Service
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    In this online interactive, learners first explore the great American inventors and their inventions as well as the role of the National Park Service. Then, learners investigate how Edison's...

    free Ages 4 - 14 5 to 10 minutes
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    National Park Service
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    In this online interactive, learners investigate "The Case of the Disappearing Dark Sky." Learners discover how human development leads to fewer visible stars as well as the effects of...

    free Ages 6 - 14 5 to 10 minutes
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    National Park Service
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    In this online interactive, learners investigate changes in the environment at various locations across the United States. Investigations of an Alaskan coastal community, the Pika, coral reef...

    free Ages 4 - 14 5 to 10 minutes
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    National Park Service
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    In this online interactive, learners explore how archaeologists analyze artifacts to better understand how people lived long ago. Learners learn about the importance of asking good questions and...

    free Ages 6 - 14 5 to 10 minutes
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    National Park Service
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    In this online interactive, learners investigate fires, particularly the causes and behavior of forest fires, as well as how the National Park Service deals with fires. Learners modify conditions ...

    free Ages 6 - 14 5 to 10 minutes

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