Asteroids and dinosaurs One geologist's surprising observation started science on an unexpected journey of discovery toward solving the mystery of the dinosaur extinction. Learn more about how science works as you follow the twists and turns of this scientific adventure.
The structure of DNA: Cooperation and competition Knowing the structure of DNA has helped push biology into new realms. Find out how the human side of science played out in this remarkable discovery.
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Teaching resources — find classroom activities, teaching tools, a K-16 conceptual framework, tips, and strategies for integrating the process of science into your teaching, and more.
