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Authored by Nick Strobel, "Astronomy Notes" is an educational resource for introductory astronomy classes for undergraduates. This section gives a extensive introduction to planetary science. Topics in this portion of...
Authored by Nick Strobel, "Astronomy Notes" is an educational resource for introductory astronomy classes for undergraduates. This section discusses smaller planetary objects, such as asteroids, meteorites, and comets,...
Created by Tom Henderson of Physics Classroom.com, this resource offers comprehensive background information on the nature of lenses and their refractive properties. Accompanying ray diagrams provide valuable tools for...
This article provides details on the NAEP Science Assessment. NAEP measures the science knowledge and skills of fourth-, eighth-, and twelfth-grade students. The assessment was developed by the National Assessment...
This website provides observational information about the visible planets, our moon and other moons, the sun, and other celestial objects. Monthly star maps and animations that show celestial motions are provided. The...
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