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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  • Many changes have occured in the Rio Grande since the 1940s that have created a river that is deeper and…
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    By the Light of the Silvery Minnow: Can Young Minnows Be Taught About Their Natural Foods?

  • Test your knowledge on ecosystems, vegetation, and erosion.
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    Crossword – Ecosystem Services

  • After reading the Southwestern United States Investi-gator, test your knowledge with a crossword puzzle.
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    Crossword – Southwestern United States Investi-gator

  • If the temperature of a stream rises too high, the animals that live in the stream may find it difficult…
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    Did They Make the Gradient? Climate and Stream Temperatures Now and Into the Future

  • From 1920 to 1950, a tree species called albizia (Falcataria moluccana) was brought to Hawai‘i from islands located north and…
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    Don’t Litter the Stream: An Invasive Tree Species and a Hawaiian Stream Food Web

  • The question you will answer in this FACTivity is: How do air temperature patterns relate to a yearly natural event,…
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    FACTivity – Timed Travel

  • This FACTivity will represent the methods the scientists used to collect vegetation data in the study. The question students will…
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    FACTivity – What Goes Around Comes Around

  • In this article, scientists explore the different ecosystem services provided by prairie potholes such as soil nutrients, absorbing carbon, and…
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    Fill Those Potholes! Identifying Ecosystem Services of Small Wetlands on the American Prairie

  • Read about efforts to model changes to land use within watersheds to help identify and prioritize watersheds with low water…
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    Full Throttle Model: Using Scientific Models to Quickly Assess Water Quality

  • Over the past decade, humans have introduced two species of Indo-Pacific lionfish (Pterois volitans and Pterois miles) into the Atlantic…
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    Lion In Wait: How Citizens Helped Scientists Identify a Rapid Invasion of Lionfish

  • 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

  • The scientists in this study were asked to develop information about the status of and trends in aquatic animal species populations across the United States.
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    One Fish, Two Fish, Red Fish–No Fish? The Current Situation and Possible Future of Aquatic Animals in the United States