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In this up-cycling activity, learners recycle plastic bags and repurpose them into useful wallets.

In this activity, learners conduct a waste audit and use their findings to implement a plan for reducing trash.

In this activity, learners collect, categorize, weigh and analyze classroom trash and discuss ways that engineers have helped to reduce solid waste.

In this activity, learners gain a better understanding of how household/school waste breaks down in a landfill. Learners collect trash and then create miniature landfills in 2-liter bottles.

In this activity, learners simulate the separation techniques that materials recovery facilities (MRFs) use and then design their own series of recycling techniques.