31 pages; color illustrations, 29 cm
"Two kids explore the ups and downs of gravity in this introduction to physical science"-- Provided by publisher.
What happens to a ball when it rolls off a table? Why doesn't the ball keep rolling straight up or fly up off the table? The answer is gravity. Adler explains how this invisible force operates in the real world. -- adapted from jacket
Ages 7-10 Holiday House.
Grades 2-3 Holiday House.