NGSS MS‑PS1‑4 color‑by‑code reviewing solids, liquids, gases, particle motion, and phase changes. Great for chemistry vocabulary and physical science review.Looking for an engaging, low-prep way to teach or review the states of matter and phase changes? This Color-by-Code activity blends science content with creativity to help students understand the properties of solids, liquids, gases, and plasma, as well as how matter changes state through melting, freezing, condensation, evaporation, and sub