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Our unit should have to following driving questions for guide our PBL
"How can we use density in the real world to solve environmental problems?"

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https://www.environmentalpollutioncenters.org/oil-spill/effects/

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https://www.youtube.com/watch?v=-CDkJuo_LYs

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Students will be researching an environmental issue that deals with density. What should be limit them to? I was thinking the garbage float and polar ice caps melting should be 2 that we include.