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  • Earth Day

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    Earth Day

  • Case Studies Earth Sciences

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    Case Studies Earth Sciences

  • Earth Watch

    Journal Article |

  • Online Extras: Learning to Read the Earth and Sky

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    Online Extras: Learning to Read the Earth and Sky If you have purchased Learning to Read the Earth and Sky, you can view the accompanying printable tables and figures and additional materials online. These resources are for your personal use only and are not to be redistributed. To view the online extras, please type in…

  • Earth as a System

    Book Chapter |

    Earth is an extremely complex system with many components and subsystems, and they all interact and affect each other. The four major subsystems are atmosphere (air), lithosphere (land), hydrosphere (water), and…

  • Earth’s Atmosphere

    Book Chapter |

    The atmosphere is made up of a variety of gases, but it is gases like water vapor and carbon dioxide, which make up a small fraction of the air, that have the biggest impact on us in terms of precipitation, pollutants,…

  • Earth’s Mass

    Book Chapter |

    The purpose of this assessment probe is to elicit students’ ideas about the cycling of matter. It can be used to determine whether students recognize that once-living matter breaks down and cycles through ecosystems…

  • Earth’s Features

    Book Chapter |

    The guiding question of this investigation is, Why do large waves often block the entrance to some harbors in New Zealand? In this lesson, the goal is to figure out how nautical charts can be used to locate different…

  • Earth’s Spheres

    Book Chapter |

    In this lesson, students continue to explore rainwater by examining the interconnectedness of Earth’s spheres. Students investigate water handling features at home and in school while conducting surveys. They learn…

  • Energy and Earth

    Book Chapter |

    In this lesson, students gain an understanding of the greenhouse effect as a natural process that traps warm air in the Earth’s atmosphere and is magnified by carbon emissions. Students compare the environmental effects…

  • Online Extras: Once Upon an Earth Science Book

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    Online Extras: Once Upon an Earth Science Book If you have purchased Once Upon an Earth Science Book, you can view the accompanying standards connections and erratum online. These resources are for your personal use only and are not to be redistributed. To view the online extras, please type in the second word in the…

  • Where on Earth Is Mars?

    Journal Article |

  • Humans and the Earth: A Relationship

    Journal Article |

  • Earth’s Place in the Universe

    Journal Article |

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