Chemistry should be fun and exciting, but much preparation and skill are needed by the teacher and students in working with chemicals. Unfortunately, accidents do happen and things can blow up, but these incidents can help be prevented by knowing and following proper safety procedures. Knowing which chemicals are appropriate for the middle level…

Presents hands-on activities that give students a head start in learning the vocabulary and basic theory involved in understanding atomic structure. Uses beads to represent protons, neutrons, and electrons and string to represent orbitals. (DDR)

Presents an activity designed to provide students with opportunities to practice drawing atomic models and discover the logical pairings of whole families on the periodic table. Follows the format of a television game show. (DDR)

Explains the development of an interdisciplinary unit in which students learn basic chemistry and laboratory techniques while practicing English, mathematics, art, social studies, and leadership skills. Includes details about lab activities, assessment strategies, and science extensions. (DDR)

Presents 10 guidelines for developing performance-based assessment items. Presents a sample activity developed from the guidelines. The activity tests students ability to observe, classify, and infer, using red and blue litmus paper, a pH-range finder, vinegar, ammonia, an unknown solution, distilled water, and paper towels. (PR)