Light: Transverse wave, Can travel through empty space, travels through air at 300,000,000 m/s, nothing can go faster than it, Increasing the amplitude makes it brighter, Goes slower through glass than air, Always travels at same speed through air, Can also be considered a particle, Given off by atoms, Sound: Planes can fly faster than it, Longitudinal waves, Cannot travel through empty space, Travels at 340 m/s, Increasing the amplitude makes it louder, If reflected, it is called an echo, Goes faster through glass than air, Speed through air changes with temperature, Caused by vibrations, Both: Can be reflected, Can be refracted, Travels as a wave, Has a frequency and amplitude, Can be used for communication, A form of energy, Given off by a firework, can travel through a liquid, Can be detected by humans,

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