How Does the Wind Blow?: I Wonder Why

Wind is invisible, but watchful students can see how air in motion be detected by movement around them. This simple book introduces the different intensities of the wind, from gentle breezes that make flags flutter to powerful tornadoes that can lift a house. As the book progresses, readers discover how wind intensities can be measured, and they indirectly become acquainted with the Beaufort Wind Scale used by meteorologists. Throughout the book, the text flows like poetry, moving young rea...