Experiments with rocket models can effectively demonstrate principles of physics and aerodynamics. Comparing the heights of a plain Coke bottle rocket, one with a weighted nose cone, and another with a nose cone and tail fins reveals how design modifications affect performance. Kit rockets, such as those from Estes, offer structured building options, while scratch-built models allow for more creativity and experimentation. It's essential to consider school safety regulations and liability when planning these projects. Overall, these experiments provide valuable insights into rocket design and flight dynamics.