People have taken dangerous risks trying to fly.
Let\'s-Read-And-Find-Out is the winner of the Am.
This is a Stage 2 Let\'s-Read-and-Find-Out, which means the book explores more challenging concepts for children in the primary grades.
This book describes the creative, fascinating, and wacky experiments that People tried before the airplane was invented.
Others tried to fly with balloons or tried to glide with the wind.
Some inventors built wings for their arms and flapped them like birds.
People have taken dangerous risks trying to fly