Aquatic Habitats--Ecology/Earth Science lesson plan (grades 6-8)--DiscoverySchoo Students learn that the way a community disposes of its wastewater may negatively affect local aquatic habitats. Both governments and citizens can take action to ensure that waste water will be disposed of in a way that is not destructive to aquatic habitats. http: //school.discovery.com/lessonplans/programs/a...
Desert Dwellers--Ecology/Earth Science lesson plan (grades 9-12)--DiscoverySchoo Students learn that deserts occur where evaporation greatly exceeds the rainfall. Measures can be taken to combat desertification and promote rehabilitation of land that has already become desert. http: //school.discovery.com/lessonplans/programs/d...