This eight-session professional development course for in-service and pre-service biology teachers is based on the PBS documentary Evolution. It is designed to address the nature of science and how Darwin's development...
This resource covers the nature and components of the Milky Way, including the disk, spiral arms, nucleus, dark matter halo, globular clusters, and central bulge; the interstellar medium, including gas, dust, HI and HII...
This resource covers Seyfert galaxies, radio galaxies, BL Lacertae (BL Lac) objects, quasars, supermassive black holes, determining masses in galactic centers using the virial theorem, and a model for active galactic...
This resource covers the surface features of Mars, including running water erosion, wind erosion, and polar caps; the atmosphere and interior of Mars; the Viking missions and their search for life; the Mariner 9 mission...
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