Friday, June 1, 2012

Science: What are Astronomical Units or AU when measuring distances?

This NASA video demonstrates how scientists compare distances between the planets and the sun using the measurement system, Astronomical Units.  They do a great job discussing scaling and why we use AU's as the measurement system when talking about our solar system.

Subject:  Science/Math-Measurement
Grade Level:  7-12
Length:  4:44


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