Middle schoolers predict which types of soils would work best for keeping contaminants contained. They comprehend that in the past, landfills have been one major source of groundwater contamination. Pupils comprehend that placing and...

Learners examine how a sanitary landfill is constructed, how it functions, and how waste and leachate affects the areas around the landfill. After a discussion about landfills and leachates, students construct a Sanitary Landfill Model...