Is one type of energy inherently good or bad? Young scientists explore energy resources in a week-long unit. After extensive research, groups create powerful position statements and presentations supporting their energy resource of choice.

Winogradsky columns are ideal for observing the role of bacteria and other microorganisms in an ecosystem. This student activity guide is complete with data tables for observations and analysis questions for processing what was observed....

Join the tree house detectives in learning about the processes of the water cycle, water conservation, water treatment, and water as a limited resource.