Save a lot of energy and keep our world clean. For every kind of living thing let's try to be more green.Zippy wordplay and zappy art make learning about eco-friendly inventions fun as Rabbit, Bird, and Mouse encounter electric cars, solar-powered planes, wind turbines, and much more. Each page is filled with details that machine-mad kids will love.From tractors and trucks to robots and rockets, the bestselling Amazing Machines series is the perfect way for children to learn