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Educational Level:
Middle school  
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1 cent - $1  
SMD Forum - Primary:
Heliophysics  
Instructional Strategies:
Guided inquiry  
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This is an activity about observing the Sun. Learners will construct a pinhole projector to project an image of the Sun, observe and record the size of the projected image, and calculate the diameter of the Sun using the measurements and a known... (View More)

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