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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  • The cover for the 'Tale of Two Caves' article. The main image is a photo of a person standing in a small passageway of a cave.
    Caves are important natural features in Sequoia and Kings Canyon National Parks in California. Past studies of some of these…
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    A Tale of Two Caves: How Is Hurricane Crawl Cave Different From Crystal Cave?

  • Article cover for Batter Up! Features an image of children playing baseball and a mechanical engineer holding up two bats and 3 baseballs.
    In “Batter Up,” learn about how engineers designed a test to determine baseball bat breakage rates for different types of…
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    Batter Up: Investigating What Type of Wood Makes the Best Baseball Bat

  • PDF preview of Caves and Karst crossword.
    After reading the Caves and Karst edition of Natural Inquirer, test your knowledge with a crossword puzzle.
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    Crossword – Caves and Karst

  • PDF preview of Freshwater crossword.
    Test your knowledge on contamination, floodplains, and watersheds.
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    Crossword – Freshwater

  • Cover of the Mussel Mania article. The main image is a photo of a hand holding a mollusk shell on top of an area full of pebbles and other shells.
    Mussels are very sensitive to changes in the environment which makes them good indicators of the health of an aquatic…
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    Mussel Mania: How Streamflow Affects Freshwater Mussels Over Long Time Periods