Final answer:
Rockets are similar to fireworks in shape and function due to their propulsion systems, which operate based on Newton's third law of motion. Both eject matter to create an equal and opposite reaction, resulting in their motion.
Step-by-step explanation:
Rockets are almost the same shape as and as cool as fireworks. This similarity is not just about their cool appearance, but also in their functioning. Rockets can range from small fireworks used by individuals for entertainment to massive Saturn V rockets that have sent payloads to the Moon. All these propulsion systems, whether in rockets, jet engines, or even in nature with squids and octopuses, operate on the principle of Newton's third law of motion. This law states that for every action, there is an equal and opposite reaction. When matter is forcefully ejected from a system - such as the gases from a rocket - it produces a reaction that propels the system in the opposite direction. This is similar to the recoil experienced by a gun when a bullet is fired; the gun exerts a force to accelerate the bullet, resulting in an equal and opposite force that causes the gun to recoil.