This game is designed to be used in junior and senior high school science classes with the purpose of introducing quark theory to students. This material expands on atomic theory and subatomic structure. Quarks are the fundamental building blocks of protons and neutrons. The game will teach students about the standard model of elementary particles, quarks, their symbols, masses, and charges. The game has four parts: (1) build a meson; (2) build a baryon; (3) decode a meson; and (4) decode a baryon. This guide provides worksheets to be used during a five-day period. This game does not include the property of spin in describing mesons and baryons. (Author/YP)