Sound is little particles banging together. This causes vibration.Tom
Sound is something that you can here miles away,and did you now there is sound under the water,also,did you now there is no sound on the moon so when people go on the moon they can not here each other.Sound can go at the sped of 360 per second.Kaea Taylor.
Wow, Tom and Kaea. You get the group points for the first two to do your homework. Fantastic job!Mrs Waterland
Sound is something that you can hear and to hear them there are invisable circle things to make sound. When the circle things bumped togher they make a sound. If you throw a rock in a river do you see some rings? The rings are actully vibration. By Andrew
sound from one cell phone to another cell phone travels at the speed of light witch is 180,000 miles per second.Rakelle
Sound is vibration that is made by tiny particles banging together to make a sound.Sound can only travel in air or water.There is no sound in space because theres no air or water.Helena Garner.
vibration that is made by particles banging together.hollie ellmers