Determining protons, neutrons,and electrons. 40 Chemical Reactions 1. Observing 41 Convervation of Matter 1. Subtraction-determining if there are mass differences before and after the reaction. Students make a polymer from Elmer's glue and Boraxo, find densities of all.
Students compare bounce heights for ploymer balls.
Graphing 43 Concentrations and Dilutions of Liquids 1. Students make a straw pipette. Students serially dilute food color until they can't see it anymore. Measuring volume 1. Students make concentrations of salt water.