In this concise and logically formatted program, students discover the fundamental building blocks of the universe: the elements. Lively computer animation makes the atom and its constituent parts—the proton, neutron, and electron—easy to understand. The Bohr Model and the Quantum Mechanical Model of the atom are clearly differentiated. Working from these concepts, students can then make sense of the Periodic Table with its arrangement according to Atomic Mass. The program also explains the concept of the mole and the different chemical bonds within molecules and compounds. A valuable summary at the end of the video reinforces all the concepts. Correlates to Project 2061 Benchmarks for Science Literacy from the American Association for the Advancement of Science. A Cambridge Educational Production. (16 minutes)