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Density Intensity
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In this activity on page 12 of the PDF (Rethinking the 3 R’s: It’s Easy to be Green), learners examine how recyclable materials are separated by various properties at recycling centers.
Harvesting Chemicals from a Battery
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In this activity, learners take apart a used zinc-carbon dry cell battery.
Don't Throw it in the Garbage
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In this activity, learners discover why only some types of plastic can be recycled.