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Topics/Subjects:
Planets  
Comparative planetology  
Educational Level:
Grade 12  
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This classic video explains the history, debate and continuing discussion of the definition of a planet.

Keywords: Dwarf planet
Audience: Middle school, High school, Informal education
Materials Cost: Free

In this hands-on experiment, students will investigate the basic principle of photosynthesis and learn how light intensity diminishes as a function of distance from the light source. Questions help learners connect these two ideas to determine if... (View More)

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