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  • PDF Preview of Where in the World is Carbon Dioxide FACTivity
    The question you will answer in this FACTivity is: Does it take much of a change in climate to cause…
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    FACTivity – Where in the World is Carbon Dioxide?

  • PDF preview of the FACTivity from Where in the World is Carbon Dioxide? in Spanish
    The question you will answer in this FACTivity is: Does it take much of a change in climate to cause…
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    FACTivity – Where in the World is Carbon Dioxide? (Spanish)

  • PDF preview of Wild Ways FACTivity.
    The question you will answer in this FACTivity is: How might climate change affect species in my state? Materials: Access…
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    FACTivity – Wild Ways

  • PDF preview of the cover for the 'Fight or Light' article. It is a photograph of a group of large tents set up for firefighters during the 1910 fires with a dense forest in the background.
    The historian in this study was interested in understanding the impact of the 1910 fires on fire policy and American…
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    Fight or Light? The History and Impact of the Big Fires of 1910

  • illustration of children weighing a house on one side of a scale and a bird on the other side
    The California gnatcatcher is a little bird with a big problem. Its habitat has been reduced 80 percent by people…
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    Fighting Fire with Fire: Protecting the Homes of People and Birds

  • illustration of children weighing a house on one side of a scale and a bird on the other side
    The California gnatcatcher is a little bird with a big problem. Its habitat has been reduced 80 percent by people…
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    Fighting Fire with Fire: Protecting the Homes of People and Birds (Spanish)

  • 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?

  • PDF Preview of Inquiry 4 from World's Forests 2
    In recent years, the amount of carbon dioxide in the atmosphere has been rising. Scientists believe that higher levels of…
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    Inquiry 4: What Do the World’s Forests Have To Do With Climate Change?

  • The cover of "It's a Gas: The Exchange of Gases Between the Soil and the Atmosphere" featuring a black and white drawing of a person looking at a cow through a magnifying glass.
    Tropical forests are sometimes cut down so that humans can use the trees for wood and other products. Then, the cleared land is made into…
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    It’s a Gas! The Exchange of Gases Between the Soil and the Atmosphere

  • The cover of "It's a Gas: The Exchange of Gases Between the Soil and the Atmosphere" featuring a black and white drawing of a person looking at a cow through a magnifying glass.
    Tropical forests are sometimes cut down so that humans can use the trees for wood and other products. Then, the cleared land is made into…
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    It’s a Gas! The Exchange of Gases Between the Soil and the Atmosphere (Spanish)

  • The cover of "It's a Small World" featuring a black and white photo of a scientist using a chainsaw on a tree trunk
    The scientists in this study were interested in three common periodic changes in sea surface temperatures, called oscillations. In particular,…
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    It’s a Small World: How Oceans and Climates Can Affect Wildland Fires Thousands of Miles Away