Learners use a microscope in a series of activities that are designed to help them explore the "invisible world" and make meaningful microscopic discoveries and learn the importance of the microscope as a tool in science and research.

Students discuss energy. In this energy challenges lesson, students read about greenhouse gas emissions and global climate change. Comprehension questions from the reading are provided. 

Learners videotape information about the biome in which they live without naming it and send this to other students across the nation so they can guess which biome it comes from. Learners include local ecosystems, information concerning...