Waves

<p>An introduction to the physics of waves. Energy transferred by the vibration of molecules creates a wave. Waves have a particular shape with peaks and valleys. The size of a wave depends on how much energy it has. The molecules in a wave stay in one place and just move slightly back and forth or up and down. Transverse waves and longitudinal waves are explained. Atoms molecules and energy are defined.</p><p>24 full-color illustrated pages. Reading Level 1-3 Interest Level 2-5. Includes a pronunciation guide for scientific terms.</p><p><br></p>