Solving real-world problems with environmental and green engineering [Let's find out! Engineering]by Lew, Kristi 

BTSB Prebound(Britannica Educational, 2016)

BTSB #: 568205 Available

Dewey: 628/NAges: 7-11   
AR: 5.2 LG

Genres:

Subjects: Environmental engineering Green technology Sustainable engineering

Summary: An introduction to green engineers and how they cut down on waste and the use of natural resources by inventing new materials and techniques.

Solving real-world problems with mechanical engineering [Let's find out! Engineering]by Shea, Therese 

BTSB Prebound(Britannica Educational, 2016)

BTSB #: 809204 Available

Dewey: 621/NAges: 7-11   
AR: 5.8 LG

Genres:

Subjects: Mechanical engineering Mechanical engineers

Summary: An introduction to mechanical engineering, including the machines and engines that power the devices, vehicles, and appliances encountered in every day life, and more.