Curated OER
Smelly Balloons
Students investigate the concept of diffusion through a membrane. They do this through the conduction of a simple experiment. Students make observations while determining if the smell of different chemicals seeps through the balloon...
Curated OER
How Diverse is That?
Learners study the concepts of "variety" and "relative abundance" as they relate to biological diversity. In this life science lesson students calculate numbers that describe the biological diversity in certain communities.
Curated OER
The Cell Cycle and Cancer
High schoolers compare and contrast the cell cycle of frog eggs, normal cells, and cancer cells. They watch a video about early development of the frog embryo, generate a hypothesis in small groups, and listen to a teacher-led lecture. ...