Forty classroom-ready science teaching and learning activities for elementary and middle school teachersGrounded in theory and best-practices research, this practical text provides elementary and middle school teachers with 40 place-based activities that will help them to make science learning relevant to their students. This text provides teachers with both a rationale and a set of strategies and activities for teaching science in a local context to help students engage with science learning and come to understand the importance of science in their everyday lives.

Where Does Your Garbage Go?
Where does your garbage go?

Science Background

The term sanitary landfill was first used in the 1930s to refer to the compacting of solid waste materials. This system was initially adopted by New York City and Fresno, California, where heavy earth-moving equipment was used to compress waste materials and then cover them with soil. The practice of covering solid waste with soil is actually much older and was evident in Greek civilization more than 2,000 years ago. However, the Greeks did not compact the waste, perhaps because they lacked the technology needed to have considered this part of the process.

Today, sanitary landfills are the major method of disposing of solid waste materials in North America and other developed countries, even while considerable ...

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