9A are collectively adding to this page

Light travels faster than sound thats why when you go to a firework display you see them first and then you hear them.light travells in straight lines sound travells in waves (vibrations)

Light travels at 300,000,000 m/s. Sound travels at 340 m/s
What experiment could you do to prove this?

What's Dispersion?

What about colour filters

Can sound travel in a vacuum

Sound is a vibration that travels through an elastic medium as a wave. The speed of sound describes how much distance such a wave travels in a certain amount of time. In dry air with a temperature of 21 °C (70 °F) the speed of sound is 344 m/s (1230 km/h, or 770 mph, or 1130 ft/s). Although it is commonly used to refer specifically to air, the speed of sound can be measured in virtually any substance. The speed of sound in liquids and non-porous solids is much higher than that in air.external image sound.gif