In Baseballs, Hockey Pucks, and Busy Ants, young readers are introduced to the scientific concept of linear motion. Physics defines any object moving in a straight line as having linear motion. Objects such as hockey pucks, baseballs, bicycles, ants, snails, horses, and people all have linear motion when they are moving in a straight line.
 
Softcover, 8×8 in., 24 pages
Word Count 138,  Lexile Measure 420L
A pronunciation guide is included. Reading Level 1-3, Interest Level 2-5.