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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  • PDF preview of At Your Service FACTivity.
    In this FACTivity, you will create an illustration model of your schoolyard’s ecosystem. The question you will answer in this…
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    FACTivity – At Your Service

  • PDF preview of the By the Light FACTivity.
    The question you will answer in this FACTivity is: How are diatoms important parts of an ecosystem? In this FACTivity…
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    FACTivity – By the Light of the Silvery Minnow

  • PDF Preview of FACTivity for Full Throttle Model
    The question you will answer in this FACTivity is, “How might fish and other aquatic life be affected by turbidity?”…
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    FACTivity – Full Throttle Model

  • PDF preview of the FACTivity for "Go With the Flow!"
    When vegetation near streams and rivers is disturbed or removed, it can no longer hold the soil in place. When…
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    FACTivity – Go With the Flow!

  • PDF preview of the Spanish version of the "Go With the Flow!" FACTivity
    When vegetation near streams and rivers is disturbed or removed, it can no longer hold the soil in place. When…
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    FACTivity – Go With the Flow! (Spanish)

  • PDF preview of the FACTivity from "Quit Yer Horsin' Around"
    In this FACTivity, you will determine whether trampling has an effect on plants by simulating different conditions. Materials: Four shoeboxes…
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    FACTivity – Quit Yer Horsin’ Around!

  • PDF of the Spanish version of the FACTivity for "Quit Yer Horsin' Around!"
    In this FACTivity, you will determine whether trampling has an effect on plants by simulating different conditions. Materials: Four shoeboxes…
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    FACTivity – Quit Yer Horsin’ Around! (Spanish)

  • PDF Preview of FACTivity for Seed Ya Later
    The questions you will answer in this FACTivity are: What are the different ways that seeds move? How can models…
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    FACTivity – Seed Ya Later!

  • PDF preview of the FACTivity for "Should Ditches Be Graded?"
    In this FACTivity, you will build an insloping road to test your own model of erosion. Materials: Two large cardboard…
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    FACTivity – Should Ditches Be Graded?

  • PDF preview of the Spanish version of the FACTivity for "Should Ditches Be Graded?"
    In this FACTivity, you will build an insloping road to test your own model of erosion. Materials: Two large cardboard…
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    FACTivity – Should Ditches Be Graded? (Spanish)

  • 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

  • PDF preview of Meet Dr. Guo featuring Dr. Guo in a yellow hard hat in a forest
    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!