1.  Science Clips- Sound and Hearing

http://www.bbc.co.uk/schools/scienceclips/ages/5_6/sound_hearing.shtml

 

2.  Science Clips- Changes in Sound

http://www.bbc.co.uk/schools/scienceclips/ages/9_10/changing_sounds.shtml

 

3.  Revise Wise- Sound

http://www.bbc.co.uk/schools/revisewise/science/physical/15_act.shtml

 

4.  Try Science- Sound

http://www.tryscience.org/experiments/experiments_japan_online.html