In Waves, young readers learn waves are created by the transfer of energy through vibration of molecules. The size of a wave depends on the amount of energy. Molecules in a wave move only slightly up and down or back and forth. A wave has a particular shape. Transverse waves, longitudinal waves, atoms, molecules, and energy are defined.
 
Softcover, 8×8 in., 24 pages
Word Count 457,  Lexile Measure 690L
A pronunciation guide is included. Reading Level 1-3, Interest Level 2-5.