Their accumulated knowledge is applied to make a telegraph. Vibration Sound Travel Pitch Students investigate sound as a property of a vibrating object. They observe and compare how sound travels through different media, how the pitch of sound can be altered, and how sound can be amplified. They investigate and describe the properties of solids and liquids and discover some things that happen when solids and liquids interact. Comparing Communicating Observing Students observe and describe the properties of a variety of kinds of wood, fabric, and paper, and find out what happens when these materials interact with other materials.
Students discover uses and applications for the materials in the real world.
This page was last updated November 8, 1996.