Use the law of conservation of mass to decide which waste management practice is the most sustainable.
The activity begins with an introduction to “The waste hierarchy” (reduce, reuse, and recycle) and a review of the law of conservation of mass. Tying these two concepts together, students assess the sustainability of the three practices. After reviewing the mechanical recycling process, students are introduced to chemical recycling. Students use this information and the criteria for a sustainable practice to re-evaluate the hierarchy of waste management.
Assess your students’ ability to:
Working in small groups, students role-play various positions at a fictitious energy company and explore the challenges...
Learn to create social media posts that effectively communicate scientific ideas.
Learn thinking tools to help create effective inquiry questions.
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