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  • 2 kids rollerblading in a park with a city skyline behind them
    The scientists in this study were asked to determine the current status of urban forests in the United States. Note: In earlier Natural…
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    Made in the Shade: The Current Situation and Possible Future of U.S. Urban Forests

  • 2 kids rollerblading in a park with a city skyline behind them
    The scientists in this study were asked to determine the current status of urban forests in the United States. Note: In earlier Natural…
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    Made in the Shade: The Current Situation and Possible Future of U.S. Urban Forests (Spanish)

  • Black and white illustration of a desktop computer on a canoe and holding an umbrella against the rain. There's a road sign in the background with an "S" giving the impression that the river the computer is on has many twists and bends. The computer has a cartoon face with a shocked expression.
    Soil erosion and sedimentation reduce the diversity of the natural environment. When soil is eroded and sedimentation occurs, important nutrients…
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    Should Ditches be Graded? Testing Unpaved Roads with a Computer Program

  • PDF preview of the Spanish version of "Should Ditches Be Graded?"
    Soil erosion and sedimentation reduce the diversity of the natural environment. When soil is eroded and sedimentation occurs, important nutrients…
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    Should Ditches be Graded? Testing Unpaved Roads with a Computer Program (Spanish)

  • Black and white illustration of a group of three skiers at the bottom of a snowy mountain.
    Do you know anyone who has gone snow skiing or snowboarding in the past year? Over the past 30 years,…
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    Slip Sliding Away: Who Goes Skiing and Snowboarding in America?

  • PDF preview of the Spanish version of "Slip Sliding Away"
    Do you know anyone who has gone snow skiing or snowboarding in the past year? Over the past 30 years,…
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    Slip Sliding Away: Who Goes Skiing and Snowboarding in America? (Spanish)

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    Test your science knowledge with a word search.
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    Word Search – Made in the Shade

  • Slip Slidin' Away - Word Search
    Test your knowledge on natural resources, outdoors recreation, and sample size.
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    Word Search – Slip Sliding Away