This term were focusing on sound, and our theme is "I Like To Move It, Move It". As you can see my friends put together a couple of facts about sound. Make sure to watch our video we have also created containing more facts about sound. Link: http://vimeo.com/94261546
Believe or not sound can't travel through vacuums or and empty area of matter. Sound is nothing more than tiny shaking movements in the air. Slow vibrations create low sounds and high vibrations create high sounds. Sound can travel through materials but hard materials can reflect sound in the opposite direction, which is known as a echo.