An engaging activity enlightens young chemists in this lesson on atomic structure. They play musical chairs through a series of concentric circles that represent electon orbitals. A laundry basket in the middle holds the protons and...

Like a fresh canvas, stem cells can turn into almost anything. In a comprehensive lesson, high school biologists use clay to build a 3-D model of cell division and the processes that occur during the first 14 days of development. Also...

Learners participate in simulation as they examine vegetation in a square meter land plot. Students construct charts and a key to make predicitons about other land plots.