Sound properties refer to the characteristics that define how sound behaves and is perceived. These include attributes like frequency, which determines the pitch of a sound, and amplitude, which affects its loudness. The speed of sound also varies depending on the medium it travels through, such as air, water, or solids. Another important property is wavelength, the distance between successive peaks of a sound wave, which influences how we perceive different sounds. Additionally, sound can reflect, refract, or absorb when it encounters various surfaces, affecting how we hear it in different environments.