How-To Themes. Opt for a how-to theme if you want your students to research key steps in a process, according to the Common Core State Standards Initiative. Tell your class that the topics must relate to social studies, science, history, literature, technology or business.
In which kind of wave do the particles of the medium move at right angles to the direction in which the wave is traveling. Transverse. In what way do the particles in the wave move when surface waves combine the properties of transverse and longitudinal waves.
Sound Waves and the Eardrum. A sound wave traveling through a fluid medium (such as a liquid or a gaseous material) has a longitudinal nature. This means that the particles of the medium vibrate in direction which is parallel (and anti-parallel) to the direction which the sound wave travels. If the sound wave travels from west to east, then the particles of the medium vibrate back and forth along the east-west axis.