Extensions include mini pipe organs and Doppler effect. The activity involves comparing the pitch of a sound with different lengths of a ruler. New A lab to compare sound going through wood vs. metal. New Students can interact with instruments on the site. MicroWorlds Web Player plug-in is needed.
Students can play a piano, find out how sound travels, explore pitch and soft and loud sounds.
Using two colored light sources students can move them to produce different colored and shaped shadows. The site contains labs to investigate the properties of sound. This site contains general information on sound. This information includes great contributions, making sound waves, sound used in medicine, industry, science, consumer goods and also reproducing sound. Sonic boom - dangers and precautions.