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Topics/Subjects:
Light and optics  
Resource Type:
Demonstration  
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Over $20  
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In this lesson on cosmic rays, students will explain two examples of a cosmic ray detector. Includes information about student preconceptions and a demonstration that requires a geiger counter and optional access to a small radioactive source that... (View More)

Keywords: Cosmic Ray; Radiation
Audience: Middle school
Materials Cost: Over $20

This demonstration shows that similar-appearing lights can be distinctly different, suggesting that the light emitted is generated in different ways. It requires some advance preparation/setup by the teacher and three recommended sources of orange... (View More)

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