Students explore air pollution. In this ecology instructional activity, students participate in an experiment in which 5 numbered jar lids are placed outside. Students bring one lid a day in until all jars are inside. Dirt specks are...

Young scholars identify both two and three-dimensional shapes. For this geometric shapes lesson, students listen to a teacher led lesson about the island of Puerto Rico. They look at the symbols and shapes on "Puerto Rico Quarter...

Young scholars find out that all habitats have a carrying capacity. They explore how the world's human population has grown markedly in the 20th century, and that humans impact environmental health. Students investigate that people can...