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The nature of technology  
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1 to 4 weeks  
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The theme of this unit is the development of an imaginary mission to the asteroid Vesta. It also introduces teachers and students to the Vesta Mappers citizen scientist project, which is part of the CosmoQuest online community. The unit is designed... (View More)

Since the Industrial Revolution, atmospheric carbon dioxide concentration has risen from ~280ppm (parts per million by volume) to ~390ppm in 2010. The rate of increase for the last decade (2001-2010) has been 2.04ppm/yr, more than double the rate... (View More)

In this problem-based learning unit, learners explore the possibilities of sustainable energy, and engage in a project to provide electricity for their city using alternative energy sources. Instructions to access NASA data are provided along with... (View More)