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  • Illustration of a male and female scientist, writing on clipboards in front of a mountain range.
    When humans divert water from mountain streams, there is less water in the streams at certain times. The scientist in…
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    Go With The Flow! Are Mountain Stream Channels Shaped by Flood and Drought?

  • PDF preview of the Spanish version of "Go With the Flow!"
    When humans divert water from mountain streams, there is less water in the streams at certain times. The scientist in…
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    Go With The Flow! Are Mountain Stream Channels Shaped by Flood and Drought? (Spanish)

  • illustration of four kids sheltered under a tree from the rain
    In the past, scientists had estimated how much rainfall is intercepted by trees growing in rural areas. The scientists in this study…
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    Good to the Last Drip: How Trees Help to Reduce Pollution

  • Good to the Last Drip cover in Spanish
    In the past, scientists had estimated how much rainfall is intercepted by trees growing in rural areas. The scientists in this study…
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    Good to the Last Drip: How Trees Help to Reduce Pollution (Spanish)

  • The cover for the Green Means Clean article. The main image is a photo of a lake with trees on the coast.
    With two-thirds of the U.S. population drinking water from surface sources such as streams, rivers, lakes, and reservoirs, it is…
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    Green Means Clean! Assessing the Condition of U.S. Drinking Water Watersheds

  • PDF preview of Grow Where You're Planted article.
    In this article, students will learn about how different planting elevations can affect Jeffrey and ponderosa pines’ survival, growth, and…
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    Grow Where You’re Planted – Testing How New Planting Elevations Affect Jeffrey and Ponderosa Pines

  • A black and white drawing of birds and leaves being blown by the wind.
    When a hurricane occurs, a lot of damage can be done to buildings and other structures. One of the most visible types of damage…
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    I’ll Huff and I’ll Puff and I’ll Blow Your Trees Down: How Wind Speed Affected Trees During Hurricane Hugo

  • A black and white drawing of birds and leaves being blown by the wind.
    When a hurricane occurs, a lot of damage can be done to buildings and other structures. One of the most visible types of damage…
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    I’ll Huff and I’ll Puff and I’ll Blow Your Trees Down: How Wind Speed Affected Trees During Hurricane Hugo (Spanish)

  • PDF preview of World's Forests Inquiry 1 article.
    Different types of forests are found across the planet. In one area, a forest may be dry with little vegetation.…
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    Inquiry 1: What Are the World’s Forests and Where Are They Found?

  • Front page of Inquiry 1: What Kind of Forests Grow on Earth and How Do They Differ? The bottom half of the page shows a world map hjighlighting different ecozones.
    Scientists working with the Food and Agriculture Organization of the United Nations wanted to know what kinds of forests grew…
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    Inquiry 1: What Kind of Forests Grow on Earth and How Do They Differ?

  • PDF Preview of Inquiry 1 from World's Forests 2
    Scientists working with the Food and Agriculture Organization of the United Nations wanted to know what kinds of forests grew…
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    Inquiry 1: What Kinds of Forests Grow on Earth and Where Are They Found?

  • The first page of the lesson plan titled "How much carbon is held by the world's forests?". The page has an illustration showing the process of carbon dioxide in the atmosphere.
    In recent years, the amount of carbon dioxide in the atmosphere has been rising. Scientists believe that higher levels of carbon…
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    Inquiry 3: How Much Carbon is Held by the World’s Forests?