MY FAVORITE MACHINE: CONCRETE MIXERS

What is your favorite machine?
In My Favorite Machine: Concrete Mixers, young readers will learn all about concrete mixers. This book introduces kids to the different concrete mixers and the process used for making and transporting concrete.
Sample Text:
Cement mixed with sand or gravel and water makes concrete.
These things are put into a drum that spins.
The drum never stops spinning. If it did, the concrete would dry.