This product has everything you need to provide mastery in New Generation Science Grade 5: Earth and Human Activity. Problems introduced include: population growth, shrinking resource supplies, greenhouse gases, acid rain, deforestation, intensive farming, misuse of fertilizers, and pesticides. Solutions presented include: organic farming, biological pest control, alternative energy sources,and conservation. A research activity (2-4 days) is provided to allow students to work in groups to present facts on the top pollution substances on the planet, then hold court to convict the most harmful pollutant. This unit is the perfect companion to NGSS 5-ESS2: Earth's Systems.