Create your own high‑bounce toy with an easy, hands‑on kit that turns a single powder sachet into a bouncy polymer ball using only water. Follow the simple steps—mix, scoop, roll, dry—and you’ll have a pocket‑sized ball ready for experiments, party games, or a rainy‑day science activity. The kit includes clear instructions and comes packaged in a convenient test tube for storage; after making the ball, measure its bounce by dropping it from different heights to explore potential and kinetic energy in a fun, tactile way. Perfect for active play and introductory polymer science.