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Topics/Subjects:
The nature of science  
Engineering and technology  
SMD Forum - Primary:
Earth Science  
Learning Time:
30 to 45 minutes  
Materials Cost:
$1 - $5  
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Learners will use an inexpensive, simple spectrophotometer to test how light at different visible wavelengths (blue, green, red) is transmitted, or absorbed, through four different colored water samples. Clear water is used as the “control,”... (View More)

In this activity, learners select the scientific instruments for their satellite, calculate the power requirements for all the subsystems, and construct a scale model of their very own Earth observing satellite using building blocks and/or Legos.... (View More)

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