How is a movie theater like a desert biome? Compare systems to ecosystems with a set of activities that focuses on accessing multiple intelligences and building upon knowledge. As learners discuss the ways elements of an ecosystem depend...

Young scientists roll up their sleeves and get a little dirty in this three-day earth science investigation. Following the scientific method, children monitor the growth of algae in pond water samples in order to determine...

Throughout history, the growth of big cities has resulted in the destruction of ecosystems. In the case of Chicago, IL, a grassland that was once home to bison, deer, wolves, and foxes quickly became a booming city of over three million...

The circle of life is all around us, from the black bears in the nearby mountains to the pile of dead leaves in the backyard. Encourage young scientists to take a critical look at the world around them with a set of lessons...