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

    Crossword – Caves and Karst

  • The scientists in this study wanted to know how rising levels of carbon dioxide in the troposphere might affect the…

    FACELook! Exploring the Relationship Between Carbon, Photosynthesis, and the Roots of Trees

  • Until the early 1950s, people mined copper, gold, and silver in the Beartooth Mountains in Montana. During mining operations, the…

    Let Nature Take Its Course: Helping the Environment Take Care of Itself

  • Until the early 1950s, people mined copper, gold, and silver in the Beartooth Mountains in Montana. During mining operations, the…

    Let Nature Take Its Course: Helping the Environment Take Care of Itself (Spanish)

  • 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.

    One Fish, Two Fish, Red Fish–No Fish? The Current Situation and Possible Future of Aquatic Animals in the United States

  • 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.

    One Fish, Two Fish, Red Fish–No Fish? The Current Situation and Possible Future of Aquatic Animals in the United States (Spanish)

  • This edition of Natural Inquirer presents the results of a worldwide effort to understand the world’s forests, organized by the…

    The World’s Forests – Vol. 11 No. 1

  • In this edition of Natural Inquirer, you will learn about the world’s forests. Every 5 years the Food and Agriculture…

    The World’s Forests 2 – Vol. 15 No. 2

  • The scientists in this study wanted to compare the chemistry of soils and leaves in Puerto Rico’s northern wet and…

    Tropic Topic: What Is Known About the Limestone Zone?

  • After reading “Let Nature Take Its Course,” try to complete this word search using glossary terms from the article.

    Word Search – Let Nature Take Its Course

  • Test your knowledge of freshwater, aquatic species, habitat, and conservation with a word search.

    Word Search – One Fish, Two Fish, Red Fish–No Fish?