Welcome to our website’s resource library, where we offer an extensive collection of free science materials tailored for K-12 students. Dive into a wealth of educational resources including articles, activities, lesson plans, learning modules, and much more. All materials are free to download!

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  • Article cover for Meet Dr. Guo Spanish version
    Natural Inquirer Readers for students in grades K-2 focus on a scientist and their research. In this Reader, readers meet Dr.…
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    Meet Dr. Guo! – Spanish

  • PDF preview of Meet Dr. Warwell featuring Dr. Warwell standing outside in a forest
    Natural Inquirer Readers for students in grades K-2 focus on a scientist and their research. In this Reader, students will…
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    Meet Dr. Warwell!

  • PDF Preview of Investi-gator Article "Seed Ya Later"
    Scientists use models to predict what might happen in the future. Some scientists would like to predict the movement of…
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    Seed Ya Later! Predicting the Movement of Trees in a Changing Climate

  • 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)

  • PDF Preview of the Spotlight on the Harrison Experimental Forest
    In 1908, the Forest Service established a system of experimental forests and ranges (EFRs) to be set aside for environmental…
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    Spotlight – Harrison Experimental Forest

  • Scientific modeling is used in medical, marine, space, and environmental science, among other fields. Scientific modeling helps scientists understand how…
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    Spotlight – Scientific Models in Adaptive Management

  • PDF preview of the Time Warp research spotlight from "Standing on the Shoulders of Giants"
    Forests provide many resources to society. To provide these resources, forest managers are continually working on tree improvement. Tree improvement…
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    Spotlight – Standing on the Shoulders of Giants Time Warp

  • PDF preview of the Time Warp Spotlight from "Full Throttle Model"
    Nonpoint source pollution is pollution coming from widely developed areas, such as farms or cities. However, nonpoint source pollution can…
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    Spotlight – Time Warp: Full Throttle Model

  • Birds and a nest being displaced by deforestation
    The scientists in this study were asked to identify which areas of forest and rangeland in the United States might become more stressed in…
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    Stress Test: The Condition and Possible Future of Forests and Rangelands in the United States

  • Birds and a nest being displaced by deforestation
    The scientists in this study were asked to identify which areas of forest and rangeland in the United States might become more stressed in…
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    Stress Test: The Condition and Possible Future of Forests and Rangelands in the United States (Spanish)

  • The cover of "The GLAS Is Half Full" featuring an illustration of a Landsat satellite.
    The scientists wanted to know if the information gathered by satellites was as good as the information they would get…
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    The GLAS Is Half Full: Satellites and Changing Tropical Forests