Kid engineers Bob and Brennan fine-tune the number of tire studs required to speed a bike across a frozen lake. Karl engineers a robot, modifying and testing its “weapons” for the greatest competitive edge. Ayanna doesn’t just make robots, she makes robots smarter. She’s using artificial intelligence to build the next Mars rover.

Originally released by Big Media Holdings LLC, 2013. Streaming video file encoded with permission for digital streaming by Infobase on February 10, 2017.

Ice Bike: Part One (5:31); --Ice Bike: Part Two (4:16); -- Science Is It (2:14); -- Bot Battles (4:35); -- Mechwars: Robotic Combat (3:02); -- Credits: Engineering (0:42); .