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Topics/Subjects:
Energy  
Educational Level:
Middle school  
Instructional Strategies:
Demonstrations  
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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

In this lesson, students explore a discrepant event when they design an experiment to measure the rate that ice melts when in pure water versus salt water. It is designed to help students realize that a carefully-designed experiment may yield... (View More)

This is an activity about the existance of infrared radiation. Learners will measure and compare temperature changes due to radiation in the visible and infrared parts of the spectrum using a strong light source. This activity is part of "Ways of... (View More)

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