In this episode we find out how to make cars more earth-friendly. ADVENTURE: Chuck and Andy go Go-Carting. Andy becomes frustrated when Chuck spends an entire race trying to make their cart “greener”. THE LAB: Dr. G decides to get rid of the gas guzzling MADMOBILE and create a super duper, greeny machiny. We find out how a gasoline engine works, what “horsepower means”, how batteries store electricity and how car tires can be recycled.

Originally released by Distribution360, 2012. Streaming video file encoded with permission for digital streaming by Infobase on June 26, 2015.

Tire Recycling (4:29); --Grand Prix Go Cart Racing (3:05); -- Name That Park (2:29); -- Diesel Engine (2:58); -- Michael's Creature Feature (4:11); -- Calumet: Skater Tales (2:54); -- Credits: Dr. G Gets a New Car: Planet Echo Season 2 (1:02); -- anne's clip (0:07);.