Turn 3 colorless solutions into red, white and blue. Make the colors disappear and reappear. Do the famous Disappearing Ink tricks, make test papers and more. Learn about the chemistry behind solutions, precipitates, acid-base reactions and pH. Contains: phenolphthalein solution, thymolphthalein solution, sodium carbonate, citric acid, calcium chloride, pipet, stirrers, cups and instructions. Ages 9+ with adult supervision.The REGULAR KITS (singles) include enough materials for repeating each experiment 2 TO 3 times. The larger CLASSROOM KITS contain 5 times the materials of the single kits, enough for a 5 STATION CLASSROOM SETUP that can be REPEATED APPROXIMATELY 3 TIMES.