Cells within cells: An extraordinary claim with extraordinary evidence Learn how an unlikely idea — that the merging of cells played a prominent role in evolution — overcame strong initial resistance within the scientific community and came to be an accepted part of evolutionary theory.
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.
A science toolkit Get the tools you need to take a scientific approach to life.
"In the long run, the greatest gift of science may be in teaching us, in ways no other human endeavor has been able, something about our cosmic context, about where, when and who we are." — Astronomer Carl Sagan, in The Demon-haunted World, 1996
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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.
