Is It Smooth or Rough? (What's the Matter?)
By Heather Rising.
Description
Why is your desk smooth? Why is sandpaper rough? What is friction? This engaging title invites curious readers to discover the answers to these questions. Vibrant photographs and accessible text encourage readers to investigate how smooth and rough materials are used in everyday life. - from Amzon
ISBN(s)
0778720586, 9780778720584
