We have something here for whatever science you teach!
All links are organized by category.
Resource Guides for Astronomy and Astronomy Education - http://www.fraknoi.com/resource-guides-on-astronomy-education/
The freely available guides include “Women in Astronomy: Accomplishments and Challenges,” “Resources for Teaching about Pluto, the Kuiper Belt, and ‘Planet 9’,” “Copyright-free Images for all Messier Objects,” “Web Resources for Debunking Astronomical Pseudo-science,” “Plays about Astronomers” and more.
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