Three things that you may want your class to vibrate to produce sounds are rubber bands, air columns, and drum heads. These represent ... A tuning fork held in the air does not produce as loud a sound as a tuning fork held against a desk or cabinet. This is ... will be produced. The activity on page 274 helps the children discover that sound waves pass through water as well as the air in order to be heard.
|Title||:||Science, a Modern Approach|
|Author||:||Abraham S. Fischler, Lawrence F. Lowery, Sam S. Blanc|