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.
For longitudinal wave the vibration of the particles of the medium are in the direction of wave propagation. A longitudinal wave proceeds in the form of compression and rarefaction which is the stretch and compression in the same direction as the wave moves.